Analysis of OSM events in Bugzilla

Date and time of the report: 2024-02-23 05:00:05.527357

Analysed period: 2020-07-01 to 2024-02-23.

Bugs considered recent: Since 2024-02-02.

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	220.500000	145.634817	92.0	112.0	161.5	322.75	436.0
1	Documentation / Wiki	4.0	251.000000	10.099505	245.0	245.0	246.5	252.50	266.0
2	IM-NBI	13.0	174.076923	93.365288	78.0	104.0	115.0	286.00	331.0
3	LCM	12.0	180.250000	154.491027	64.0	72.0	103.0	234.25	526.0
4	MON	1.0	377.000000	NaN	377.0	377.0	377.0	377.00	377.0
5	N2VC	1.0	211.000000	NaN	211.0	211.0	211.0	211.00	211.0
6	NG-SA	1.0	23.000000	NaN	23.0	23.0	23.0	23.00	23.0
7	OSMClient	8.0	317.250000	120.793507	217.0	246.5	259.0	354.75	510.0
8	POL	2.0	104.000000	5.656854	100.0	102.0	104.0	106.00	108.0
9	RO	17.0	272.352941	229.541647	92.0	108.0	202.0	315.00	944.0
10	Robot-tests	11.0	132.272727	94.867372	64.0	64.0	64.0	247.00	266.0

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	944	8.0	423.500000	261.567254	92.0	288.25	378.5	...	gulsum.atici@canonical.com	2022-03-31 23:59:59	CURRENT	2.0	keywords	CURRENT	2023-02-28 23:59:59	False	319	944
1	NaN	2252	2023-08-24 16:59:46	266	4.0	251.000000	10.099505	245.0	245.00	246.5	...	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	266
2	NaN	2270	2023-11-10 08:21:04	223	8.0	133.250000	49.660994	98.0	103.75	109.5	...	rahul.k4@tataelxsi.co.in	2023-07-31 23:59:59	CURRENT	1.0	comment	CURRENT	2023-11-30 23:59:59	False	0	223
3	NaN	2280	2024-01-18 15:39:05	202	4.0	120.000000	56.733294	72.0	91.50	103.0	...	rahul.k4@tataelxsi.co.in	2023-11-30 23:59:59	CURRENT	1.0	comment	CURRENT	2024-01-31 23:59:59	False	101	202
4	NaN	2281	2023-08-04 08:10:19	202	8.0	133.250000	49.660994	98.0	103.75	109.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-08-31 23:59:59	False	0	202
5	NaN	2284	2023-08-09 11:49:19	197	7.0	118.285714	35.074750	100.0	102.00	106.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-08-31 23:59:59	False	0	197

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	601	8.0	423.500000	261.567254	92.0	288.25	378.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-07-31 23:59:59	False	248	601
1	NaN	2164	2023-10-17 17:21:22	526	3.0	253.000000	240.576391	72.0	116.50	161.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-10-31 23:59:59	False	138	526
2	NaN	2176	2023-10-17 16:56:24	510	6.0	339.000000	134.747171	217.0	239.00	285.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-10-31 23:59:59	False	382	510
3	NaN	2177	2023-10-17 17:02:41	507	6.0	339.000000	134.747171	217.0	239.00	285.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-10-31 23:59:59	False	379	507
4	NaN	2214	2023-03-07 05:29:42	393	4.0	215.000000	171.648866	64.0	70.00	201.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-03-31 23:59:59	False	0	393
5	NaN	2223	2023-03-03 13:23:34	360	2.0	236.000000	175.362482	112.0	174.00	236.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-03-31 23:59:59	False	0	360
6	NaN	2241	2023-04-28 14:57:23	300	4.0	256.500000	69.294059	153.0	252.75	286.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-04-30 23:59:59	False	0	300
7	NaN	2253	2023-08-24 16:59:30	266	7.0	171.285714	100.581168	64.0	64.00	247.0	...	selvi.j@tataelxsi.co.in	2023-08-31 23:59:59	CURRENT	2.0	cc	CURRENT	2023-08-31 23:59:59	False	0	266
8	NaN	2299	2023-12-04 16:05:27	115	7.0	118.285714	35.074750	100.0	102.00	106.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-12-31 23:59:59	False	0	115
9	NaN	2301	2023-11-02 10:16:46	112	2.0	102.000000	14.142136	92.0	97.00	102.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59	False	0	112
10	NaN	2305	2023-11-06 21:11:09	108	2.0	104.000000	5.656854	100.0	102.00	104.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59	False	0	108

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	461	8.0	423.500000	261.567254	92.0	288.25	378.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-05-31 23:59:59.000000	False	0	461
1	NaN	2200	2023-02-07 00:00:27	442	8.0	423.500000	261.567254	92.0	288.25	378.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-02-28 23:59:59.000000	False	0	442
2	NaN	2205	2023-02-13 00:00:24	436	1.0	436.000000	NaN	436.0	436.00	436.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-02-28 23:59:59.000000	False	0	436
3	NaN	2215	2024-01-30 15:43:42	377	1.0	377.000000	NaN	377.0	377.00	377.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2024-01-31 23:59:59.000000	False	0	377
4	NaN	2229	2023-03-30 11:29:33	331	1.0	331.000000	NaN	331.0	331.00	331.0	...	NaN	NaT	NaN	NaN	short_desc	CURRENT	2023-03-31 23:59:59.000000	False	0	331
5	NaN	2230	2023-03-28 19:37:13	331	4.0	215.000000	171.648866	64.0	70.00	201.5	...	NaN	NaT	NaN	NaN	cc	CURRENT	2023-03-31 23:59:59.000000	False	0	331
6	NaN	2233	2023-04-13 10:02:45	315	8.0	423.500000	261.567254	92.0	288.25	378.5	...	NaN	NaT	NaN	NaN	cc	CURRENT	2023-04-30 23:59:59.000000	False	0	315
7	NaN	2235	2023-06-11 19:42:11	310	8.0	423.500000	261.567254	92.0	288.25	378.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-06-30 23:59:59.000000	False	0	310
8	NaN	2240	2023-04-24 16:52:54	304	6.0	339.000000	134.747171	217.0	239.00	285.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-04-30 23:59:59.000000	False	0	304
9	NaN	2243	2024-02-06 15:42:59	287	4.0	256.500000	69.294059	153.0	252.75	286.5	...	NaN	NaT	NaN	NaN	comment	RECENT	2024-02-23 04:00:05.558996	False	0	287
10	NaN	2245	2024-02-21 12:49:36	286	4.0	256.500000	69.294059	153.0	252.75	286.5	...	NaN	NaT	NaN	NaN	comment	RECENT	2024-02-23 04:00:05.558996	False	0	286
11	NaN	2251	2023-08-24 16:59:52	266	6.0	339.000000	134.747171	217.0	239.00	285.0	...	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	266
12	NaN	2259	2023-06-15 17:15:02	252	2.0	252.000000	0.000000	252.0	252.00	252.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-06-30 23:59:59.000000	False	0	252
13	NaN	2260	2023-06-15 17:18:45	252	2.0	252.000000	0.000000	252.0	252.00	252.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-06-30 23:59:59.000000	False	0	252
14	NaN	2261	2023-06-21 13:01:39	248	4.0	251.000000	10.099505	245.0	245.00	246.5	...	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	248
15	NaN	2263	2023-06-21 12:59:45	247	7.0	171.285714	100.581168	64.0	64.00	247.0	...	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	247
16	NaN	2264	2023-06-21 12:59:58	247	7.0	171.285714	100.581168	64.0	64.00	247.0	...	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	247
17	NaN	2265	2023-06-21 13:00:12	247	7.0	171.285714	100.581168	64.0	64.00	247.0	...	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	247
18	NaN	2266	2023-06-22 15:10:37	245	4.0	251.000000	10.099505	245.0	245.00	246.5	...	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	245
19	NaN	2267	2023-06-22 15:10:07	245	4.0	251.000000	10.099505	245.0	245.00	246.5	...	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	245
20	NaN	2269	2023-07-07 16:05:57	230	6.0	339.000000	134.747171	217.0	239.00	285.0	...	ramerama@tataelxsi.co.in	2023-07-31 23:59:59	CURRENT	1.0	version	CURRENT	2023-07-31 23:59:59.000000	False	0	230
21	NaN	2271	2023-07-19 18:53:57	223	8.0	423.500000	261.567254	92.0	288.25	378.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-07-31 23:59:59.000000	False	0	223
22	NaN	2274	2023-07-20 15:08:35	217	6.0	339.000000	134.747171	217.0	239.00	285.0	...	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	217
23	NaN	2277	2023-07-26 11:00:06	211	1.0	211.000000	NaN	211.0	211.00	211.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-07-31 23:59:59.000000	False	0	211
24	NaN	2278	2023-08-10 09:39:19	211	1.0	211.000000	NaN	211.0	211.00	211.0	...	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	211
25	NaN	2286	2023-09-08 11:17:57	176	1.0	176.000000	NaN	176.0	176.00	176.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-09-30 23:59:59.000000	False	0	176
26	NaN	2287	2023-09-18 23:58:26	161	3.0	253.000000	240.576391	72.0	116.50	161.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-09-30 23:59:59.000000	False	0	161
27	NaN	2288	2023-09-22 15:22:41	153	4.0	256.500000	69.294059	153.0	252.75	286.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-09-30 23:59:59.000000	False	0	153
28	NaN	2298	2023-10-26 18:28:56	119	8.0	133.250000	49.660994	98.0	103.75	109.5	...	NaN	NaT	NaN	NaN	cc	CURRENT	2023-10-31 23:59:59.000000	False	0	119
29	NaN	2300	2023-11-02 10:16:46	112	2.0	236.000000	175.362482	112.0	174.00	236.0	...	NaN	NaT	NaN	NaN	blocked	CURRENT	2023-11-30 23:59:59.000000	False	0	112
30	NaN	2303	2023-11-09 07:37:41	111	8.0	133.250000	49.660994	98.0	103.75	109.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59.000000	False	0	111
31	NaN	2304	2023-12-11 15:40:49	108	4.0	120.000000	56.733294	72.0	91.50	103.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-12-31 23:59:59.000000	False	21	108
32	NaN	2306	2023-11-16 14:53:53	108	8.0	133.250000	49.660994	98.0	103.75	109.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59.000000	False	0	108
33	NaN	2307	2024-02-20 16:25:14	106	7.0	118.285714	35.074750	100.0	102.00	106.0	...	NaN	NaT	NaN	NaN	comment	RECENT	2024-02-23 04:00:05.558996	False	0	106
34	NaN	2308	2024-02-20 16:24:22	106	7.0	118.285714	35.074750	100.0	102.00	106.0	...	NaN	NaT	NaN	NaN	comment	RECENT	2024-02-23 04:00:05.558996	False	0	106
35	NaN	2310	2023-11-09 14:01:03	105	8.0	133.250000	49.660994	98.0	103.75	109.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59.000000	False	0	105
36	NaN	2312	2023-11-13 06:08:30	104	7.0	118.285714	35.074750	100.0	102.00	106.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59.000000	False	0	104
37	NaN	2313	2023-11-14 12:17:39	100	7.0	118.285714	35.074750	100.0	102.00	106.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59.000000	False	0	100
38	NaN	2314	2024-02-20 16:27:21	100	7.0	118.285714	35.074750	100.0	102.00	106.0	...	NaN	NaT	NaN	NaN	comment	RECENT	2024-02-23 04:00:05.558996	False	0	100
39	NaN	2315	2023-11-16 10:54:23	100	2.0	104.000000	5.656854	100.0	102.00	104.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59.000000	False	0	100
40	NaN	2316	2023-11-14 18:31:37	100	8.0	133.250000	49.660994	98.0	103.75	109.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59.000000	False	0	100
41	NaN	2318	2023-11-16 16:28:43	98	8.0	133.250000	49.660994	98.0	103.75	109.5	...	NaN	NaT	NaN	NaN	short_desc	CURRENT	2023-11-30 23:59:59.000000	False	0	98
42	NaN	2319	2023-11-17 05:47:17	98	4.0	120.000000	56.733294	72.0	91.50	103.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59.000000	False	0	98
43	NaN	2320	2023-11-22 16:37:54	92	8.0	423.500000	261.567254	92.0	288.25	378.5	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59.000000	False	0	92
44	NaN	2321	2023-11-24 17:15:07	92	2.0	102.000000	14.142136	92.0	97.00	102.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-11-30 23:59:59.000000	False	0	92
45	NaN	2322	2023-12-06 06:38:53	78	1.0	78.000000	NaN	78.0	78.00	78.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-12-31 23:59:59.000000	False	0	78
46	NaN	2323	2023-12-12 11:13:39	72	4.0	215.000000	171.648866	64.0	70.00	201.5	...	NaN	NaT	NaN	NaN	blocked	CURRENT	2023-12-31 23:59:59.000000	False	0	72
47	NaN	2324	2023-12-12 11:13:39	72	4.0	120.000000	56.733294	72.0	91.50	103.0	...	NaN	NaT	NaN	NaN	dependson	CURRENT	2023-12-31 23:59:59.000000	False	0	72
48	NaN	2325	2023-12-12 11:13:39	72	3.0	253.000000	240.576391	72.0	116.50	161.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-12-31 23:59:59.000000	False	0	72
49	NaN	2326	2024-02-05 18:34:33	64	4.0	64.000000	0.000000	64.0	64.00	64.0	...	gerardo.garciadeblas@telefonica.com	2023-12-31 23:59:59	CURRENT	1.0	comment	RECENT	2024-02-23 04:00:05.558996	False	0	64
50	NaN	2328	2023-12-20 14:21:06	64	4.0	215.000000	171.648866	64.0	70.00	201.5	...	NaN	NaT	NaN	NaN	blocked	CURRENT	2023-12-31 23:59:59.000000	False	0	64
51	NaN	2329	2023-12-20 14:21:06	64	1.0	64.000000	NaN	64.0	64.00	64.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-12-31 23:59:59.000000	False	0	64
52	NaN	2330	2023-12-20 14:23:29	64	7.0	171.285714	100.581168	64.0	64.00	247.0	...	gerardo.garciadeblas@telefonica.com	2023-12-31 23:59:59	CURRENT	1.0	blocked	CURRENT	2023-12-31 23:59:59.000000	False	0	64
53	NaN	2331	2023-12-20 14:23:39	64	4.0	64.000000	0.000000	64.0	64.00	64.0	...	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	64
54	NaN	2332	2024-02-02 14:50:02	64	7.0	171.285714	100.581168	64.0	64.00	247.0	...	NaN	NaT	NaN	NaN	comment	RECENT	2024-02-23 04:00:05.558996	False	0	64
55	NaN	2333	2023-12-20 15:09:38	64	4.0	64.000000	0.000000	64.0	64.00	64.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-12-31 23:59:59.000000	False	0	64
56	NaN	2334	2023-12-20 17:06:52	64	7.0	171.285714	100.581168	64.0	64.00	247.0	...	NaN	NaT	NaN	NaN	blocked	CURRENT	2023-12-31 23:59:59.000000	False	0	64
57	NaN	2335	2023-12-20 17:06:52	64	4.0	64.000000	0.000000	64.0	64.00	64.0	...	NaN	NaT	NaN	NaN	comment	CURRENT	2023-12-31 23:59:59.000000	False	0	64

58 rows × 40 columns

3. Temporal evolution

3.1 Number of open bugs