Analysis of OSM events in Bugzilla

Date and time of the report: 2024-02-25 05:00:05.519153

Analysed period: 2020-07-01 to 2024-02-25.

Bugs considered recent: Since 2024-02-04.

1. Imports and cleans raw source data with all Bugzilla events

DONE

2. Current state of open bugs

2.1 Number of open bugs

Total number of open bugs:

76

Bugs present in multiple branches:

	BUG_DESCRIPTION	NUM_BRANCHES	RELEASE	MODULE	TIMESTAMP
0	NS deletion takes longer than expected for bas...	2	[Master, v15.0]	LCM	2023-12-20 14:13:28
1	Robot testsuite heal_02 fails in a step when c...	2	[Master, v15.0]	Robot-tests	2023-12-20 15:09:20
2	Robot testsuite heal_03 fails when checking if...	2	[Master, v15.0]	Robot-tests	2023-12-20 17:06:32
3	Robot testsuite lcmop_01 fails in daily job wh...	2	[Master, v15.0]	Robot-tests	2023-12-20 14:23:08
4	Unable to install OSM in air-gapped environmet	2	[Master, v14.0]	DEVOPS	2023-11-02 10:16:24
5	Updating a VNF instance with an NS update oper...	3	[Master, v14.0, v12.0]	LCM	2023-12-12 11:11:02

Number of bugs per module

AGE	CURRENT	Total
MODULE
DEVOPS	6	6
Documentation / Wiki	4	4
IM-NBI	13	13
LCM	12	12
MON	1	1
N2VC	1	1
NG-SA	1	1
OSMClient	8	8
POL	2	2
RO	17	17
Robot-tests	11	11
Total	76	76

2.2 Age of open bugs

Age vs. state of open bugs (global)

AGE	CURRENT	Total
VALUE
OPEN-UNCONFIRMED	69	69
CONFIRMED	5	5
IN_PROGRESS	2	2
Total	76	76

Age distribution per module

NOTE: To see how a boxplot representation works, you may refer to this article.

Table with distributions of ages of currently open bugs:

	MODULE	count	mean	std	min	25%	50%	75%	max
0	DEVOPS	6.0	222.500000	145.634817	94.0	114.0	163.5	324.75	438.0
1	Documentation / Wiki	4.0	253.000000	10.099505	247.0	247.0	248.5	254.50	268.0
2	IM-NBI	13.0	176.076923	93.365288	80.0	106.0	117.0	288.00	333.0
3	LCM	12.0	182.250000	154.491027	66.0	74.0	105.0	236.25	528.0
4	MON	1.0	379.000000	NaN	379.0	379.0	379.0	379.00	379.0
5	N2VC	1.0	213.000000	NaN	213.0	213.0	213.0	213.00	213.0
6	NG-SA	1.0	25.000000	NaN	25.0	25.0	25.0	25.00	25.0
7	OSMClient	8.0	319.250000	120.793507	219.0	248.5	261.0	356.75	512.0
8	POL	2.0	106.000000	5.656854	102.0	104.0	106.0	108.00	110.0
9	RO	17.0	274.352941	229.541647	94.0	110.0	204.0	317.00	946.0
10	Robot-tests	11.0	134.272727	94.867372	66.0	66.0	66.0	249.00	268.0

2.3 Outliers

Four types of bug age outliers are identified:

1. Too old bugs.
2. Pure outliers for boxplot: Beyond Q3+1.5IQR for the MDG.
3. Beyond 3rd quartile of ages.
4. Age beyond 2 months.

Recommendations file does not exist.

Summary table of outliers:

AGE	1. Open outliers	2. Open beyond q3	3. Open beyond 2 months	All
MODULE
DEVOPS	0	2	4	6.0
Documentation / Wiki	1	0	3	4.0
IM-NBI	1	2	10	13.0
LCM	1	2	9	12.0
MON	0	0	1	1.0
N2VC	0	0	1	1.0
OSMClient	0	2	6	8.0
POL	0	1	1	2.0
RO	3	1	13	17.0
Robot-tests	0	1	10	11.0
All	6	11	58	75.0

Outlier details

Too old bugs:

	RECOMMENDATION	BUG_ID	BUG_DESCRIPTION	ISSUER	CREATION_TIME	CREATION_AGE	MONTH	STATE	STATE_UPDATE_TIME	STATE_UPDATE_AGE	...	LAST_ASSIGNMENT_MONTH	LAST_ASSIGNMENT_AGE	OWNER_CHANGES	LAST_EVENT	LAST_EVENT_TIME	LAST_EVENT_AGE	LAST_EVENT_MONTH	SOLVED	BUG_RESOLUTION_TIME	TIME_SINCE_CREATION

0 rows × 29 columns

Pure outliers:

	RECOMMENDATION	BUG_ID	LAST_EVENT_TIME	Time bug open (days)	count	mean	std	min	25%	50%	...	OWNER	LAST_ASSIGNMENT_MONTH	LAST_ASSIGNMENT_AGE	OWNER_CHANGES	LAST_EVENT	LAST_EVENT_AGE	LAST_EVENT_MONTH	SOLVED	BUG_RESOLUTION_TIME	TIME_SINCE_CREATION
0	NaN	1603	2023-02-15 00:00:12	946	8.0	425.500000	261.567254	94.0	290.25	380.5	...	gulsum.atici@canonical.com	2022-03-31 23:59:59	CURRENT	2.0	keywords	CURRENT	2023-02-28 23:59:59	False	319	946
1	NaN	2252	2023-08-24 16:59:46	268	4.0	253.000000	10.099505	247.0	247.00	248.5	...	selvi.j@tataelxsi.co.in	2023-08-31 23:59:59	CURRENT	2.0	assigned_to	CURRENT	2023-08-31 23:59:59	False	0	268
2	NaN	2270	2023-11-10 08:21:04	225	8.0	135.250000	49.660994	100.0	105.75	111.5	...	rahul.k4@tataelxsi.co.in	2023-07-31 23:59:59	CURRENT	1.0	comment	CURRENT	2023-11-30 23:59:59	False	0	225
3	NaN	2280	2024-01-18 15:39:05	204	4.0	122.000000	56.733294	74.0	93.50	105.0	...	rahul.k4@tataelxsi.co.in	2023-11-30 23:59:59	CURRENT	1.0	comment	CURRENT	2024-01-31 23:59:59	False	101	204
4	NaN	2281	2023-08-04 08:10:19	204	8.0	135.250000	49.660994	100.0	105.75	111.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-08-31 23:59:59	False	0	204
5	NaN	2284	2023-08-09 11:49:19	199	7.0	120.285714	35.074750	102.0	104.00	108.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-08-31 23:59:59	False	0	199

6 rows × 40 columns

Beyond Q3:

	RECOMMENDATION	BUG_ID	LAST_EVENT_TIME	Time bug open (days)	count	mean	std	min	25%	50%	...	OWNER	LAST_ASSIGNMENT_MONTH	LAST_ASSIGNMENT_AGE	OWNER_CHANGES	LAST_EVENT	LAST_EVENT_AGE	LAST_EVENT_MONTH	SOLVED	BUG_RESOLUTION_TIME	TIME_SINCE_CREATION
0	NaN	2093	2023-07-19 17:19:49	603	8.0	425.500000	261.567254	94.0	290.25	380.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-07-31 23:59:59	False	248	603
1	NaN	2164	2023-10-17 17:21:22	528	3.0	255.000000	240.576391	74.0	118.50	163.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-10-31 23:59:59	False	138	528
2	NaN	2176	2023-10-17 16:56:24	512	6.0	341.000000	134.747171	219.0	241.00	287.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-10-31 23:59:59	False	382	512
3	NaN	2177	2023-10-17 17:02:41	509	6.0	341.000000	134.747171	219.0	241.00	287.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-10-31 23:59:59	False	379	509
4	NaN	2214	2023-03-07 05:29:42	395	4.0	217.000000	171.648866	66.0	72.00	203.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-03-31 23:59:59	False	0	395
5	NaN	2223	2023-03-03 13:23:34	362	2.0	238.000000	175.362482	114.0	176.00	238.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-03-31 23:59:59	False	0	362
6	NaN	2241	2023-04-28 14:57:23	302	4.0	258.500000	69.294059	155.0	254.75	288.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-04-30 23:59:59	False	0	302
7	NaN	2253	2023-08-24 16:59:30	268	7.0	173.285714	100.581168	66.0	66.00	249.0	...	selvi.j@tataelxsi.co.in	2023-08-31 23:59:59	CURRENT	2.0	cc	CURRENT	2023-08-31 23:59:59	False	0	268
8	NaN	2299	2023-12-04 16:05:27	117	7.0	120.285714	35.074750	102.0	104.00	108.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-12-31 23:59:59	False	0	117
9	NaN	2301	2023-11-02 10:16:46	114	2.0	104.000000	14.142136	94.0	99.00	104.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59	False	0	114
10	NaN	2305	2023-11-06 21:11:09	110	2.0	106.000000	5.656854	102.0	104.00	106.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59	False	0	110

11 rows × 40 columns

Beyond 2 months:

	RECOMMENDATION	BUG_ID	LAST_EVENT_TIME	Time bug open (days)	count	mean	std	min	25%	50%	...	OWNER	LAST_ASSIGNMENT_MONTH	LAST_ASSIGNMENT_AGE	OWNER_CHANGES	LAST_EVENT	LAST_EVENT_AGE	LAST_EVENT_MONTH	SOLVED	BUG_RESOLUTION_TIME	TIME_SINCE_CREATION
0	NaN	2195	2023-05-15 14:29:20	463	8.0	425.500000	261.567254	94.0	290.25	380.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-05-31 23:59:59.000000	False	0	463
1	NaN	2200	2023-02-07 00:00:27	444	8.0	425.500000	261.567254	94.0	290.25	380.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-02-28 23:59:59.000000	False	0	444
2	NaN	2205	2023-02-13 00:00:24	438	1.0	438.000000	NaN	438.0	438.00	438.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-02-28 23:59:59.000000	False	0	438
3	NaN	2215	2024-01-30 15:43:42	379	1.0	379.000000	NaN	379.0	379.00	379.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2024-01-31 23:59:59.000000	False	0	379
4	NaN	2229	2023-03-30 11:29:33	333	1.0	333.000000	NaN	333.0	333.00	333.0	...	NaN	NaT	NaN	NaN	short_desc	CURRENT	2023-03-31 23:59:59.000000	False	0	333
5	NaN	2230	2023-03-28 19:37:13	333	4.0	217.000000	171.648866	66.0	72.00	203.5	...	NaN	NaT	NaN	NaN	cc	CURRENT	2023-03-31 23:59:59.000000	False	0	333
6	NaN	2233	2023-04-13 10:02:45	317	8.0	425.500000	261.567254	94.0	290.25	380.5	...	NaN	NaT	NaN	NaN	cc	CURRENT	2023-04-30 23:59:59.000000	False	0	317
7	NaN	2235	2023-06-11 19:42:11	312	8.0	425.500000	261.567254	94.0	290.25	380.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-06-30 23:59:59.000000	False	0	312
8	NaN	2240	2023-04-24 16:52:54	306	6.0	341.000000	134.747171	219.0	241.00	287.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-04-30 23:59:59.000000	False	0	306
9	NaN	2243	2024-02-06 15:42:59	289	4.0	258.500000	69.294059	155.0	254.75	288.5	...	NaN	NaT	NaN	NaN	comment	RECENT	2024-02-25 04:00:05.549560	False	0	289
10	NaN	2245	2024-02-21 12:49:36	288	4.0	258.500000	69.294059	155.0	254.75	288.5	...	NaN	NaT	NaN	NaN	comment	RECENT	2024-02-25 04:00:05.549560	False	0	288
11	NaN	2251	2023-08-24 16:59:52	268	6.0	341.000000	134.747171	219.0	241.00	287.0	...	selvi.j@tataelxsi.co.in	2023-08-31 23:59:59	CURRENT	2.0	assigned_to	CURRENT	2023-08-31 23:59:59.000000	False	0	268
12	NaN	2259	2023-06-15 17:15:02	254	2.0	254.000000	0.000000	254.0	254.00	254.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-06-30 23:59:59.000000	False	0	254
13	NaN	2260	2023-06-15 17:18:45	254	2.0	254.000000	0.000000	254.0	254.00	254.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-06-30 23:59:59.000000	False	0	254
14	NaN	2261	2023-06-21 13:01:39	250	4.0	253.000000	10.099505	247.0	247.00	248.5	...	ramerama@tataelxsi.co.in	2023-06-30 23:59:59	CURRENT	1.0	assigned_to	CURRENT	2023-06-30 23:59:59.000000	False	0	250
15	NaN	2263	2023-06-21 12:59:45	249	7.0	173.285714	100.581168	66.0	66.00	249.0	...	ramerama@tataelxsi.co.in	2023-06-30 23:59:59	CURRENT	1.0	assigned_to	CURRENT	2023-06-30 23:59:59.000000	False	0	249
16	NaN	2264	2023-06-21 12:59:58	249	7.0	173.285714	100.581168	66.0	66.00	249.0	...	ramerama@tataelxsi.co.in	2023-06-30 23:59:59	CURRENT	1.0	assigned_to	CURRENT	2023-06-30 23:59:59.000000	False	0	249
17	NaN	2265	2023-06-21 13:00:12	249	7.0	173.285714	100.581168	66.0	66.00	249.0	...	ramerama@tataelxsi.co.in	2023-06-30 23:59:59	CURRENT	1.0	assigned_to	CURRENT	2023-06-30 23:59:59.000000	False	0	249
18	NaN	2266	2023-06-22 15:10:37	247	4.0	253.000000	10.099505	247.0	247.00	248.5	...	rahul.k4@tataelxsi.co.in	2023-06-30 23:59:59	CURRENT	1.0	assigned_to	CURRENT	2023-06-30 23:59:59.000000	False	0	247
19	NaN	2267	2023-06-22 15:10:07	247	4.0	253.000000	10.099505	247.0	247.00	248.5	...	deepika.e@tataelxsi.co.in	2023-06-30 23:59:59	CURRENT	1.0	assigned_to	CURRENT	2023-06-30 23:59:59.000000	False	0	247
20	NaN	2269	2023-07-07 16:05:57	232	6.0	341.000000	134.747171	219.0	241.00	287.0	...	ramerama@tataelxsi.co.in	2023-07-31 23:59:59	CURRENT	1.0	version	CURRENT	2023-07-31 23:59:59.000000	False	0	232
21	NaN	2271	2023-07-19 18:53:57	225	8.0	425.500000	261.567254	94.0	290.25	380.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-07-31 23:59:59.000000	False	0	225
22	NaN	2274	2023-07-20 15:08:35	219	6.0	341.000000	134.747171	219.0	241.00	287.0	...	deepika.e@tataelxsi.co.in	2023-07-31 23:59:59	CURRENT	1.0	assigned_to	CURRENT	2023-07-31 23:59:59.000000	False	0	219
23	NaN	2277	2023-07-26 11:00:06	213	1.0	213.000000	NaN	213.0	213.00	213.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-07-31 23:59:59.000000	False	0	213
24	NaN	2278	2023-08-10 09:39:19	213	1.0	213.000000	NaN	213.0	213.00	213.0	...	guillermo.calvino@canonical.com	2023-07-31 23:59:59	CURRENT	1.0	bug_severity	CURRENT	2023-08-31 23:59:59.000000	False	0	213
25	NaN	2286	2023-09-08 11:17:57	178	1.0	178.000000	NaN	178.0	178.00	178.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-09-30 23:59:59.000000	False	0	178
26	NaN	2287	2023-09-18 23:58:26	163	3.0	255.000000	240.576391	74.0	118.50	163.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-09-30 23:59:59.000000	False	0	163
27	NaN	2288	2023-09-22 15:22:41	155	4.0	258.500000	69.294059	155.0	254.75	288.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-09-30 23:59:59.000000	False	0	155
28	NaN	2298	2023-10-26 18:28:56	121	8.0	135.250000	49.660994	100.0	105.75	111.5	...	NaN	NaT	NaN	NaN	cc	CURRENT	2023-10-31 23:59:59.000000	False	0	121
29	NaN	2300	2023-11-02 10:16:46	114	2.0	238.000000	175.362482	114.0	176.00	238.0	...	NaN	NaT	NaN	NaN	blocked	CURRENT	2023-11-30 23:59:59.000000	False	0	114
30	NaN	2303	2023-11-09 07:37:41	113	8.0	135.250000	49.660994	100.0	105.75	111.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59.000000	False	0	113
31	NaN	2304	2023-12-11 15:40:49	110	4.0	122.000000	56.733294	74.0	93.50	105.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-12-31 23:59:59.000000	False	21	110
32	NaN	2306	2023-11-16 14:53:53	110	8.0	135.250000	49.660994	100.0	105.75	111.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59.000000	False	0	110
33	NaN	2307	2024-02-20 16:25:14	108	7.0	120.285714	35.074750	102.0	104.00	108.0	...	NaN	NaT	NaN	NaN	comment	RECENT	2024-02-25 04:00:05.549560	False	0	108
34	NaN	2308	2024-02-20 16:24:22	108	7.0	120.285714	35.074750	102.0	104.00	108.0	...	NaN	NaT	NaN	NaN	comment	RECENT	2024-02-25 04:00:05.549560	False	0	108
35	NaN	2310	2023-11-09 14:01:03	107	8.0	135.250000	49.660994	100.0	105.75	111.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59.000000	False	0	107
36	NaN	2312	2023-11-13 06:08:30	106	7.0	120.285714	35.074750	102.0	104.00	108.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59.000000	False	0	106
37	NaN	2313	2023-11-14 12:17:39	102	7.0	120.285714	35.074750	102.0	104.00	108.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59.000000	False	0	102
38	NaN	2314	2024-02-20 16:27:21	102	7.0	120.285714	35.074750	102.0	104.00	108.0	...	NaN	NaT	NaN	NaN	comment	RECENT	2024-02-25 04:00:05.549560	False	0	102
39	NaN	2315	2023-11-16 10:54:23	102	2.0	106.000000	5.656854	102.0	104.00	106.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59.000000	False	0	102
40	NaN	2316	2023-11-14 18:31:37	102	8.0	135.250000	49.660994	100.0	105.75	111.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59.000000	False	0	102
41	NaN	2318	2023-11-16 16:28:43	100	8.0	135.250000	49.660994	100.0	105.75	111.5	...	NaN	NaT	NaN	NaN	short_desc	CURRENT	2023-11-30 23:59:59.000000	False	0	100
42	NaN	2319	2023-11-17 05:47:17	100	4.0	122.000000	56.733294	74.0	93.50	105.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59.000000	False	0	100
43	NaN	2320	2023-11-22 16:37:54	94	8.0	425.500000	261.567254	94.0	290.25	380.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59.000000	False	0	94
44	NaN	2321	2023-11-24 17:15:07	94	2.0	104.000000	14.142136	94.0	99.00	104.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59.000000	False	0	94
45	NaN	2322	2023-12-06 06:38:53	80	1.0	80.000000	NaN	80.0	80.00	80.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-12-31 23:59:59.000000	False	0	80
46	NaN	2323	2023-12-12 11:13:39	74	4.0	217.000000	171.648866	66.0	72.00	203.5	...	NaN	NaT	NaN	NaN	blocked	CURRENT	2023-12-31 23:59:59.000000	False	0	74
47	NaN	2324	2023-12-12 11:13:39	74	4.0	122.000000	56.733294	74.0	93.50	105.0	...	NaN	NaT	NaN	NaN	dependson	CURRENT	2023-12-31 23:59:59.000000	False	0	74
48	NaN	2325	2023-12-12 11:13:39	74	3.0	255.000000	240.576391	74.0	118.50	163.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-12-31 23:59:59.000000	False	0	74
49	NaN	2326	2024-02-05 18:34:33	66	4.0	66.000000	0.000000	66.0	66.00	66.0	...	gerardo.garciadeblas@telefonica.com	2023-12-31 23:59:59	CURRENT	1.0	comment	RECENT	2024-02-25 04:00:05.549560	False	0	66
50	NaN	2328	2023-12-20 14:21:06	66	4.0	217.000000	171.648866	66.0	72.00	203.5	...	NaN	NaT	NaN	NaN	blocked	CURRENT	2023-12-31 23:59:59.000000	False	0	66
51	NaN	2329	2023-12-20 14:21:06	66	1.0	66.000000	NaN	66.0	66.00	66.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-12-31 23:59:59.000000	False	0	66
52	NaN	2330	2023-12-20 14:23:29	66	7.0	173.285714	100.581168	66.0	66.00	249.0	...	gerardo.garciadeblas@telefonica.com	2023-12-31 23:59:59	CURRENT	1.0	blocked	CURRENT	2023-12-31 23:59:59.000000	False	0	66
53	NaN	2331	2023-12-20 14:23:39	66	4.0	66.000000	0.000000	66.0	66.00	66.0	...	gerardo.garciadeblas@telefonica.com	2023-12-31 23:59:59	CURRENT	1.0	assigned_to	CURRENT	2023-12-31 23:59:59.000000	False	0	66
54	NaN	2332	2024-02-02 14:50:02	66	7.0	173.285714	100.581168	66.0	66.00	249.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2024-02-25 04:00:05.549560	False	0	66
55	NaN	2333	2023-12-20 15:09:38	66	4.0	66.000000	0.000000	66.0	66.00	66.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-12-31 23:59:59.000000	False	0	66
56	NaN	2334	2023-12-20 17:06:52	66	7.0	173.285714	100.581168	66.0	66.00	249.0	...	NaN	NaT	NaN	NaN	blocked	CURRENT	2023-12-31 23:59:59.000000	False	0	66
57	NaN	2335	2023-12-20 17:06:52	66	4.0	66.000000	0.000000	66.0	66.00	66.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-12-31 23:59:59.000000	False	0	66

58 rows × 40 columns

3. Temporal evolution

3.1 Number of open bugs