what left-handed pitcher has the lowest era of the 1990s

Between the 1990 and 1999 seasons, John Tudor had the best ERA by a left-hander, with an ERA of 2.40.

Interpreted as:

What left-handed pitcher has the lowest era with a minimum of 0.5 IP per team game of the 1990s?

	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	John Tudor J. Tudor	2.40	25	12	4	.750	22	63	1	1	0	146.1	120	39	48	10	30	2	0	4	575	0	3.87	1.85	2.10	0.62	11.0	5.2	1.03	.234	2.95	63	3.48	92	7.38	4.9
2	Randy Johnson R. Johnson	3.14	298	150	75	.667	290	2,538	65	25	2	2063.1	1,560	721	805	183	910	98	3	13	8,557	65	11.07	3.97	2.79	0.80	29.7	10.6	1.20	.285	3.51	72	3.16	73	6.80	281.4
3	Tom Glavine T. Glavine	3.21	327	164	87	.653	327	1,465	38	14	0	2228.0	2,101	794	877	141	764	23	0	72	9,325	50	5.92	3.09	1.92	0.57	15.7	8.2	1.29	.283	3.54	78	3.58	86	8.49	138.4
4	Randy Tomlin R. Tomlin	3.43	106	30	31	.492	94	297	8	3	0	580.1	590	221	250	37	133	17	1	9	2,399	14	4.61	2.06	2.23	0.57	12.4	5.5	1.25	.289	3.88	93	3.43	93	9.15	16.6
5	Mike Hampton M. Hampton	3.50	208	70	43	.619	154	701	13	6	1	1043.0	1,040	406	474	78	390	21	9	13	4,445	35	6.05	3.37	1.80	0.67	15.8	8.8	1.37	.296	4.09	87	3.93	96	8.97	18.8
6	Sid Fernandez S. Fernandez	3.52	138	45	51	.469	137	771	10	4	0	833.2	657	326	350	104	291	16	1	14	3,425	5	8.32	3.14	2.65	1.12	22.5	8.5	1.14	.247	3.78	88	3.81	95	7.09	14.1
7	Frank Viola F. Viola	3.52	149	59	52	.532	149	557	18	5	0	978.1	977	383	426	76	316	18	0	19	4,132	38	5.12	2.91	1.76	0.70	13.5	7.6	1.32	.285	3.92	88	3.76	94	8.99	22.2
8	Zane Smith Z. Smith	3.58	170	61	56	.521	163	489	18	10	0	1018.1	1,075	405	469	75	198	12	1	25	4,192	7	4.32	1.75	2.47	0.66	11.7	4.7	1.25	.293	4.15	90	3.55	90	9.50	43.5
9	Charlie Leibrandt C. Leibrandt	3.60	118	48	41	.539	117	397	12	5	0	735.1	736	294	339	51	178	17	0	15	3,084	17	4.86	2.18	2.23	0.62	12.9	5.8	1.24	.281	4.15	92	3.46	90	9.01	32.1
10	Jimmy Key J. Key	3.62	246	112	68	.622	232	924	12	7	0	1476.2	1,475	594	645	145	389	22	4	9	6,149	25	5.63	2.37	2.38	0.88	15.0	6.3	1.26	.285	3.93	83	3.84	88	8.99	88.8
11	Bob Ojeda B. Ojeda	3.65	109	27	25	.519	81	306	4	2	0	519.2	532	211	241	39	218	6	9	21	2,252	12	5.30	3.78	1.40	0.68	13.6	9.7	1.44	.293	4.17	101	3.92	107	9.21	-15.5
12	Bruce Hurst B. Hurst	3.70	109	42	29	.592	109	467	19	8	0	713.2	680	293	312	69	195	4	0	11	2,950	18	5.89	2.46	2.39	0.87	15.8	6.6	1.23	.276	3.93	97	3.61	94	8.58	18.1
13	Al Leiter A. Leiter	3.71	210	83	63	.568	180	993	11	6	2	1181.1	1,031	487	520	83	612	55	7	23	5,093	38	7.57	4.66	1.62	0.63	19.5	12.0	1.39	.283	3.96	86	4.04	92	7.85	48
14	Chuck Finley C. Finley	3.76	316	135	108	.556	316	1,784	46	13	0	2144.0	2,040	896	1,004	217	888	59	0	16	9,137	102	7.49	3.73	2.01	0.91	19.5	9.7	1.37	.295	4.21	84	3.99	89	8.56	121.7
15	Jeff Fassero J. Fassero	3.81	366	92	83	.526	194	1,229	17	2	10	1465.1	1,439	620	711	146	507	26	64	28	6,291	68	7.55	3.11	2.42	0.90	19.5	8.1	1.33	.295	4.37	88	3.79	87	8.84	81.9
16	Denny Neagle D. Neagle	3.82	286	90	60	.600	188	998	18	7	3	1311.0	1,268	557	600	152	378	30	23	32	5,480	33	6.85	2.59	2.64	1.04	18.2	6.9	1.26	.285	4.12	91	4.01	95	8.70	31.7
17	Butch Henry B. Henry	3.83	148	33	33	.500	91	345	4	2	7	621.0	677	264	289	61	149	9	18	15	2,629	4	5.00	2.16	2.32	0.88	13.1	5.7	1.33	.298	4.19	94	3.93	98	9.81	6.3
18	Trevor Wilson T. Wilson	3.83	151	39	41	.488	107	394	7	4	0	666.2	612	284	312	58	273	23	12	18	2,805	12	5.32	3.69	1.44	0.78	14.0	9.7	1.33	.269	4.21	105	4.16	110	8.26	-28.1
19	Greg Swindell G. Swindell	3.88	416	80	78	.506	184	961	18	5	4	1480.1	1,580	638	709	173	320	17	49	21	6,193	18	5.84	1.95	3.00	1.05	15.5	5.2	1.28	.298	4.31	96	3.86	95	9.61	26.3
20	Andy Pettitte A. Pettitte	3.92	165	81	46	.638	158	709	14	1	0	1044.1	1,087	455	492	85	376	16	2	9	4,443	29	6.11	3.24	1.89	0.73	16.0	8.5	1.40	.308	4.24	85	3.95	85	9.37	80.7
21	Donovan Osborne D. Osborne	3.92	143	47	45	.511	138	535	4	2	0	840.0	851	366	415	96	231	16	2	17	3,535	19	5.73	2.47	2.32	1.03	15.1	6.5	1.29	.284	4.45	99	4.12	101	9.12	-4.7
22	John Smiley J. Smiley	3.92	224	95	79	.546	220	965	15	6	0	1410.2	1,410	615	674	139	347	32	0	15	5,852	32	6.16	2.21	2.78	0.89	16.5	5.9	1.25	.291	4.30	97	3.70	91	9.00	60.2
23	Brian Barnes B. Barnes	3.94	116	14	22	.389	56	275	2	0	3	406.1	364	178	193	39	204	9	13	8	1,754	15	6.09	4.52	1.35	0.86	15.7	11.6	1.40	.265	4.27	106	4.34	116	8.06	-28.5
24	Chris Nabholz C. Nabholz	3.94	141	37	35	.514	100	405	4	2	0	611.2	542	268	289	41	278	20	7	15	2,588	24	5.96	4.09	1.46	0.60	15.6	10.7	1.34	.272	4.25	102	3.89	102	7.97	-8.4
25	Wilson Alvarez W. Alvarez	3.94	249	86	76	.531	223	1,074	11	4	1	1433.0	1,321	628	709	151	706	36	4	23	6,189	24	6.75	4.43	1.52	0.95	17.4	11.4	1.41	.277	4.45	88	4.49	100	8.30	1.1