what pitcher had the lowest era from 1964 to 1968

Between the 1964 and 1968 seasons, Vicente Romo had the lowest ERA, with an ERA of 1.60.

Interpreted as:

What pitcher had the lowest era with a minimum of 0.5 IP per team game from 1964 to 1968?

	NAME	ERA	G	W	L	W%	GS	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Vicente Romo V. Romo	1.60	41	5	3	.625	1	54	0	0	12	84.1	44	15	16	5	32	2	30	6	326	4	5.76	3.42	1.69	0.53	16.6	9.8	0.90	.167	1.71	53	3.08	97	4.70	1.1
2	Hoyt Wilhelm H. Wilhelm	1.74	306	36	25	.590	0	410	0	0	78	539.1	359	104	131	30	137	11	199	19	2,091	19	6.84	2.29	2.99	0.50	19.6	6.6	0.92	.219	2.19	54	2.55	76	5.99	49.3
3	Sandy Koufax S. Koufax	1.85	113	72	22	.766	110	922	69	20	3	881.2	611	181	213	58	201	5	3	13	3,441	27	9.41	2.05	4.59	0.59	26.8	5.8	0.92	.245	2.17	57	2.02	64	6.24	116.7
4	Frank Linzy F. Linzy	2.03	222	32	29	.525	0	166	0	0	65	373.0	326	84	110	11	118	6	163	38	1,535	13	4.01	2.85	1.41	0.27	10.8	7.7	1.19	.255	2.65	61	2.99	93	7.87	9.9
5	Stan Bahnsen S. Bahnsen	2.17	41	18	13	.581	37	178	11	1	1	290.1	231	70	81	17	75	2	4	6	1,160	7	5.52	2.32	2.37	0.53	15.3	6.5	1.05	.241	2.51	75	2.73	90	7.16	9.3
6	Tom Murphy T. Murphy	2.17	15	5	6	.455	15	56	3	0	0	99.1	67	24	30	5	28	5	0	0	391	2	5.07	2.54	2.00	0.45	14.3	7.2	0.96	.209	2.72	76	2.91	96	6.07	1
7	Andy Messersmith A. Messersmith	2.21	28	4	2	.667	5	74	2	1	3	81.1	44	20	21	3	35	1	9	4	321	3	8.19	3.87	2.11	0.33	23.1	10.9	0.97	.197	2.32	77	2.37	79	4.87	5.9
8	Joe Horlen J. Horlen	2.32	173	67	56	.545	161	592	37	15	1	1122.1	915	289	347	70	275	31	5	35	4,492	37	4.75	2.21	2.15	0.56	13.2	6.1	1.06	.240	2.78	72	3.09	93	7.34	30.1
9	Juan Marichal J. Marichal	2.38	173	108	46	.701	170	1,052	119	25	1	1399.2	1,183	370	440	118	222	17	3	33	5,568	17	6.76	1.43	4.74	0.76	18.9	4.0	1.00	.256	2.83	71	2.62	81	7.61	98.7
10	Jerry Koosman J. Koosman	2.39	44	19	14	.576	37	189	17	7	0	286.0	243	76	89	19	88	8	1	11	1,163	8	5.95	2.77	2.15	0.60	16.3	7.6	1.16	.261	2.80	78	2.95	102	7.65	-2.9
11	Jim Hardin J. Hardin	2.43	54	26	16	.619	49	224	21	4	0	355.0	273	96	109	25	97	13	2	5	1,409	10	5.68	2.46	2.31	0.63	15.9	6.9	1.04	.236	2.76	81	3.02	96	6.92	5.1
12	Don McMahon D. McMahon	2.45	297	29	19	.604	0	363	0	0	43	467.1	340	127	147	35	203	15	135	31	1,920	36	6.99	3.91	1.79	0.67	18.9	10.6	1.16	.234	2.83	72	3.34	95	6.55	9.9
13	Bob Locker B. Locker	2.47	254	26	19	.578	0	281	0	0	44	401.1	324	110	129	17	103	18	128	41	1,629	11	6.30	2.31	2.73	0.38	17.2	6.3	1.06	.254	2.89	78	2.56	78	7.27	32.6
14	Tom Seaver T. Seaver	2.47	71	32	25	.561	69	375	32	7	1	529.0	448	145	158	34	126	13	2	11	2,117	13	6.38	2.14	2.98	0.58	17.7	6.0	1.09	.264	2.69	78	2.66	88	7.62	20.5
15	Al Worthington A. Worthington	2.47	287	34	30	.531	0	354	0	0	85	419.1	328	115	142	21	168	6	196	30	1,736	21	7.60	3.61	2.11	0.45	20.4	9.7	1.18	.259	3.05	72	2.73	76	7.04	39.3
16	Ron Kline R. Kline	2.47	308	42	23	.646	0	222	0	0	78	455.1	431	125	156	36	116	7	213	48	1,876	10	4.39	2.29	1.91	0.71	11.8	6.2	1.20	.264	3.08	74	3.37	99	8.52	1.5
17	Bob Gibson B. Gibson	2.47	171	95	52	.646	165	1,155	95	28	2	1346.2	1,052	370	417	100	369	35	4	29	5,407	33	7.72	2.47	3.13	0.67	21.4	6.8	1.06	.254	2.79	69	2.67	78	7.03	106
18	Dock Ellis D. Ellis	2.50	26	6	5	.545	10	52	2	0	0	104.1	82	29	35	4	38	1	5	4	426	6	4.49	3.28	1.37	0.35	12.2	8.9	1.15	.236	3.02	85	3.01	108	7.07	-2.5
19	Gary Nolan G. Nolan	2.51	56	23	12	.657	54	317	12	7	0	376.2	298	105	121	28	111	8	1	8	1,527	6	7.57	2.65	2.86	0.67	20.8	7.3	1.09	.254	2.89	73	2.71	83	7.12	24.4
20	Phil Niekro P. Niekro	2.56	162	31	27	.534	55	343	25	6	19	603.2	528	172	221	35	156	18	56	14	2,460	48	5.11	2.33	2.20	0.52	13.9	6.3	1.13	.258	3.29	79	2.96	94	7.87	11.9
21	Whitey Ford W. Ford	2.58	105	37	28	.569	88	398	23	11	2	606.0	572	174	208	42	140	3	10	11	2,487	16	5.91	2.08	2.84	0.62	16.0	5.6	1.17	.278	3.09	76	2.85	81	8.50	47.1
22	Dean Chance D. Chance	2.60	207	83	66	.557	183	1,005	69	28	7	1339.1	1,065	387	460	69	432	35	16	43	5,432	44	6.75	2.90	2.33	0.46	18.5	8.0	1.12	.256	3.09	79	2.73	80	7.16	101.4
23	Wilbur Wood W. Wood	2.60	180	18	17	.514	13	162	1	0	20	328.2	295	95	113	14	91	7	67	24	1,349	15	4.44	2.49	1.78	0.38	12.0	6.7	1.17	.261	3.09	80	2.93	90	8.08	12.1
24	Luis Tiant L. Tiant	2.61	173	66	44	.600	123	885	54	20	12	950.1	710	276	308	89	303	12	33	15	3,811	13	8.38	2.87	2.92	0.84	23.2	8.0	1.07	.246	2.92	78	2.85	83	6.72	60.9
25	Sam McDowell S. McDowell	2.63	183	65	54	.546	161	1,246	49	14	8	1146.0	838	335	396	63	567	32	13	28	4,794	58	9.79	4.45	2.20	0.49	26.0	11.8	1.23	.269	3.11	79	2.62	76	6.58	106.2