How many pennants do the astros have since 2015?

	TEAM	DATE	SEASON	SERIES	TM		OPP	RESULT	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Astros	10/13/2017	2017	ALCS	HOU	vs	NYY	W 2-1	30	2	6	0	0	0	2	1	0	5	1	0	31	6	0	0	0	0	0	.200	.226	.200	.426
2	Astros	10/14/2017	2017	ALCS	HOU	vs	NYY	W 2-1	28	2	5	2	0	1	2	3	0	4	0	0	31	10	3	0	0	0	2	.179	.258	.357	.615
3	Astros	10/16/2017	2017	ALCS	HOU	@	NYY	L 1-8	31	1	4	0	0	0	1	8	0	7	0	0	39	4	0	0	0	0	1	.129	.308	.129	.437
4	Astros	10/17/2017	2017	ALCS	HOU	@	NYY	L 4-6	29	4	3	3	0	0	3	3	1	9	0	0	33	6	3	0	0	0	2	.103	.212	.207	.419
5	Astros	10/18/2017	2017	ALCS	HOU	@	NYY	L 0-5	32	0	4	2	0	0	0	1	0	9	0	0	33	6	2	0	0	0	0	.125	.152	.188	.339
6	Astros	10/20/2017	2017	ALCS	HOU	vs	NYY	W 7-1	31	7	8	3	0	1	7	5	0	7	0	0	37	14	4	0	1	0	0	.258	.351	.452	.803
7	Astros	10/21/2017	2017	ALCS	HOU	vs	NYY	W 4-0	33	4	10	1	0	2	4	3	0	4	0	0	36	17	3	0	0	0	1	.303	.361	.515	.876
8	Astros	10/13/2018	2018	ALCS	HOU	@	BOS	W 7-2	30	7	5	1	0	2	7	10	3	9	1	2	43	12	3	0	0	0	1	.167	.419	.400	.819
9	Astros	10/14/2018	2018	ALCS	HOU	@	BOS	L 5-7	34	5	7	3	0	1	5	5	0	8	0	0	39	13	4	0	0	0	0	.206	.308	.382	.690
10	Astros	10/16/2018	2018	ALCS	HOU	vs	BOS	L 2-8	34	2	7	1	0	0	2	3	0	8	0	0	37	8	1	0	0	0	0	.206	.270	.235	.506
11	Astros	10/17/2018	2018	ALCS	HOU	vs	BOS	L 6-8	39	6	13	4	0	2	6	5	2	6	1	0	46	23	6	0	0	0	0	.333	.435	.590	1.025
12	Astros	10/18/2018	2018	ALCS	HOU	vs	BOS	L 1-4	32	1	5	1	0	1	1	2	0	12	0	0	34	9	2	0	0	0	0	.156	.206	.281	.487
13	Astros	10/12/2019	2019	ALCS	HOU	vs	NYY	L 0-7	27	0	3	0	0	0	0	2	0	6	0	0	29	3	0	0	0	0	2	.111	.172	.111	.284
14	Astros	10/13/2019	2019	ALCS	HOU	vs	NYY	W 3-2	37	3	7	1	0	2	3	6	0	14	0	0	43	14	3	0	0	0	1	.189	.302	.378	.681
15	Astros	10/15/2019	2019	ALCS	HOU	@	NYY	W 4-1	34	4	7	1	0	2	3	5	1	10	1	0	41	14	3	0	1	1	0	.206	.317	.412	.729
16	Astros	10/17/2019	2019	ALCS	HOU	@	NYY	W 8-3	39	8	8	1	0	2	7	3	1	6	0	0	43	15	3	0	0	0	0	.205	.279	.385	.664
17	Astros	10/18/2019	2019	ALCS	HOU	@	NYY	L 1-4	32	1	5	0	0	0	0	5	0	12	0	0	37	5	0	0	0	0	0	.156	.270	.156	.427
18	Astros	10/19/2019	2019	ALCS	HOU	vs	NYY	W 6-4	32	6	6	1	0	2	6	6	0	6	1	0	38	13	3	0	0	0	1	.188	.316	.406	.722
19	Astros	10/11/2020	2020	ALCS	HOU	@	TBR	L 1-2	33	1	9	0	0	1	1	4	1	5	1	1	38	12	1	0	0	0	1	.273	.368	.364	.732
20	Astros	10/12/2020	2020	ALCS	HOU	@	TBR	L 2-4	36	2	10	1	0	1	1	3	1	8	0	0	40	14	2	0	0	0	1	.278	.350	.389	.739
21	Astros	10/13/2020	2020	ALCS	HOU	vs	TBR	L 2-5	34	2	7	0	0	2	2	4	1	9	0	0	39	13	2	0	0	0	0	.206	.308	.382	.690
22	Astros	10/14/2020	2020	ALCS	HOU	vs	TBR	W 4-3	29	4	9	1	0	2	4	3	0	7	0	0	32	16	3	0	0	0	4	.310	.375	.552	.927
23	Astros	10/15/2020	2020	ALCS	HOU	vs	TBR	W 4-3	29	4	6	1	0	2	4	3	0	5	0	0	32	13	3	0	0	1	1	.207	.281	.448	.730
24	Astros	10/16/2020	2020	ALCS	HOU	@	TBR	W 7-4	33	7	11	2	0	1	7	9	0	11	0	1	44	16	3	1	1	0	2	.333	.465	.485	.950
25	Astros	10/17/2020	2020	ALCS	HOU	@	TBR	L 2-4	33	2	7	0	0	0	2	3	0	9	0	0	36	7	0	0	0	0	1	.212	.278	.212	.490
	Total								1,386	172	319	51	3	52	164	166	20	311	11	4	1,582	532	106	2	8	9	34	.230	.320	.384	.703