which starting pitcher for the asstros has the lowest era in a season with atleast 100 innings pitched

Nolan Ryan has the lowest ERA by an Astros starting pitcher with 100.0+ innings pitched in a season, with an ERA of 1.69 in 1981.

Interpreted as:

Which starting pitcher for the asstros has the lowest era in a season with atleast 100 or more innings pitched?

	NAME	ERA	IP	SEASON	TM	G	W	L	W%	GS	SO	CG	SHO	SV	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Nolan Ryan N. Ryan	1.69	149.0	1981	HOU	21	11	5	.688	21	140	5	3	0	99	28	34	2	68	1	0	1	605	16	8.46	4.11	2.06	0.12	23.1	11.2	1.12	.246	2.05	5.98
2	Justin Verlander J. Verlander	1.75	175.0	2022	HOU	28	18	4	.818	28	185	0	0	0	116	34	43	12	29	6	0	0	666	3	9.51	1.49	6.38	0.62	27.8	4.4	0.83	.240	2.21	5.97
3	Roger Clemens R. Clemens	1.87	211.1	2005	HOU	32	13	8	.619	32	185	1	0	0	151	44	51	11	62	3	0	5	838	3	7.88	2.64	2.98	0.47	22.1	7.4	1.01	.243	2.17	6.43
4	J.R. Richard	1.90	113.2	1980	HOU	17	10	4	.714	17	119	4	4	0	65	24	31	2	40	0	0	1	438	2	9.42	3.17	2.98	0.16	27.2	9.1	0.92	.227	2.45	5.15
5	Danny Darwin D. Darwin	2.14	117.2	1990	HOU	17	9	3	.750	17	74	3	0	0	98	28	29	6	23	2	0	1	466	0	5.66	1.76	3.22	0.46	15.9	4.9	1.03	.255	2.22	7.50
6	Bob Knepper B. Knepper	2.18	156.2	1981	HOU	22	9	5	.643	22	75	6	5	0	128	38	41	5	38	4	0	1	617	0	4.31	2.18	1.97	0.29	12.2	6.2	1.06	.248	2.36	7.35
7	Mike Scott M. Scott	2.22	275.1	1986	HOU	37	18	10	.643	37	306	7	5	0	182	68	73	17	72	2	0	6	1,065	3	10.00	2.35	4.25	0.56	28.7	6.8	0.92	.247	2.39	5.95
8	Vern Ruhle V. Ruhle	2.30	148.2	1980	HOU	22	12	4	.750	22	50	6	2	0	132	38	47	7	22	3	0	1	587	0	3.03	1.33	2.27	0.42	8.5	3.7	1.04	.248	2.85	7.99
9	Roger Clemens R. Clemens	2.30	113.1	2006	HOU	19	7	6	.538	19	102	0	0	0	89	29	34	7	29	4	0	1	451	3	8.10	2.30	3.52	0.56	22.6	6.4	1.04	.265	2.70	7.07
10	Mike Cuellar M. Cuellar	2.32	205.2	1966	HOU	28	9	9	.500	28	155	11	1	0	174	53	75	9	48	0	0	7	829	8	6.78	2.10	3.23	0.39	18.7	5.8	1.08	.267	3.28	7.61
11	Larry Dierker L. Dierker	2.36	301.1	1969	HOU	37	20	13	.606	37	231	20	4	0	237	79	97	18	70	1	0	5	1,190	9	6.90	2.09	3.30	0.54	19.4	5.9	1.02	.252	2.90	7.08
12	Andy Pettitte A. Pettitte	2.39	222.1	2005	HOU	33	17	9	.654	33	171	0	0	0	188	59	66	17	41	3	0	0	875	2	6.92	1.66	4.17	0.69	19.5	4.7	1.03	.266	2.67	7.61
13	Don Wilson D. Wilson	2.46	267.1	1971	HOU	34	16	10	.615	34	180	18	3	0	194	73	80	15	79	7	0	3	1,064	5	6.06	2.66	2.28	0.50	16.9	7.4	1.02	.229	2.69	6.53
14	Joe Niekro J. Niekro	2.47	270.0	1982	HOU	35	17	12	.586	35	130	16	5	0	224	74	79	12	64	5	0	1	1,067	19	4.33	2.13	2.03	0.40	12.2	6.0	1.07	.248	2.63	7.47
15	Dallas Keuchel D. Keuchel	2.48	232.0	2015	HOU	33	20	8	.714	33	216	3	2	0	185	64	68	17	51	2	0	0	911	9	8.38	1.98	4.24	0.66	23.7	5.6	1.02	.269	2.64	7.18
16	Gerrit Cole G. Cole	2.50	212.1	2019	HOU	33	20	5	.800	33	326	0	0	0	142	59	66	29	48	3	0	0	817	4	13.82	2.03	6.79	1.23	39.9	5.9	0.89	.275	2.80	6.02
17	Mark Portugal M. Portugal	2.51	100.1	1992	HOU	16	5	3	.625	16	61	1	1	0	75	28	30	7	39	1	0	3	399	1	5.47	3.50	1.56	0.63	15.3	9.8	1.14	.234	2.69	6.73
18	Justin Verlander J. Verlander	2.52	214.0	2018	HOU	34	16	9	.640	34	290	1	1	0	156	60	63	28	37	8	0	0	833	5	12.20	1.56	7.84	1.18	34.8	4.4	0.90	.272	2.65	6.56
19	Darryl Kile D. Kile	2.57	255.2	1997	HOU	34	19	7	.731	34	205	6	4	0	208	73	87	19	94	10	0	2	1,056	7	7.22	3.31	2.18	0.67	19.4	8.9	1.18	.260	3.06	7.32
20	Justin Verlander J. Verlander	2.58	223.0	2019	HOU	34	21	6	.778	34	300	2	1	0	137	64	66	36	42	6	0	0	847	4	12.11	1.70	7.14	1.45	35.4	5.0	0.80	.218	2.66	5.53
21	Don Sutton D. Sutton	2.61	158.2	1981	HOU	23	11	9	.550	23	104	6	3	0	132	46	51	6	29	1	0	3	624	0	5.90	1.64	3.59	0.34	16.7	4.6	1.01	.260	2.89	7.49
22	Ken Johnson K. Johnson	2.67	219.0	1963	HOU	32	10	16	.385	32	146	6	1	0	199	65	85	12	50	8	0	4	901	1	6.00	2.05	2.92	0.49	16.2	5.5	1.14	.273	3.49	8.18
23	Ken Forsch K. Forsch	2.68	168.0	1971	HOU	23	8	8	.500	23	118	7	2	0	148	50	57	8	44	4	0	4	690	8	6.32	2.36	2.68	0.43	17.1	6.4	1.14	.271	3.05	7.93
24	Cristian Javier C. Javier	2.68	134.1	2022	HOU	25	11	8	.579	25	173	0	0	0	81	40	42	16	49	4	0	0	531	5	11.59	3.28	3.53	1.07	32.6	9.2	0.97	.225	2.81	5.43
25	Don Wilson D. Wilson	2.68	228.1	1972	HOU	33	15	10	.600	33	172	13	3	0	196	68	79	16	66	2	0	2	927	11	6.78	2.60	2.61	0.63	18.6	7.1	1.15	.268	3.11	7.73