which pitcher had the most shutouts from 1978 to 1987

Between the 1978 and 1987 seasons, Fernando Valenzuela pitched the most shutouts, with 27 shutouts.

Interpreted as:

Which pitcher had the most regular-season shutouts from 1978 to 1987?

	NAME	SHO	G	W	L	W%	GS	ERA	SO	CG	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	Fernando Valenzuela F. Valenzuela	27	244	113	82	.579	234	3.08	1,464	96	1	1805.2	1,549	618	709	111	664	14	4	44	7,479	68	7.30	3.31	2.20	0.55	19.6	8.9	1.23	.275	3.53	87	3.04	84	7.72	108.6
2	Bob Knepper B. Knepper	25	340	110	124	.470	322	3.60	1,171	68	1	2132.2	2,158	852	980	178	617	38	7	63	9,000	40	4.94	2.60	1.90	0.75	13.0	6.9	1.30	.283	4.14	102	3.62	104	9.11	-43.2
3	Scott McGregor S. McGregor	23	320	135	99	.577	298	3.93	833	82	1	1994.2	2,082	870	949	224	476	19	12	24	8,357	24	3.76	2.15	1.75	1.01	10.0	5.7	1.28	.273	4.28	99	4.08	101	9.39	-13
4	Bob Welch B. Welch	23	292	115	86	.572	267	3.14	1,292	47	8	1820.2	1,631	635	702	133	565	37	16	42	7,525	37	6.39	2.79	2.29	0.66	17.2	7.5	1.21	.272	3.47	88	3.25	90	8.06	71.2
5	Dave Stieb D. Stieb	22	292	115	101	.532	285	3.41	1,184	88	1	2044.0	1,837	774	865	167	718	82	3	30	8,523	35	5.21	3.16	1.65	0.74	13.9	8.4	1.25	.262	3.81	81	3.81	92	8.09	70
6	Steve Rogers S. Rogers	22	236	98	80	.551	231	3.10	910	74	1	1666.2	1,539	574	636	88	509	24	2	47	6,864	40	4.91	2.75	1.79	0.48	13.3	7.4	1.23	.272	3.43	87	3.25	91	8.31	60.6
7	Ron Guidry R. Guidry	21	308	152	80	.655	287	3.29	1,543	86	3	2093.2	1,932	766	835	206	540	10	11	19	8,564	47	6.63	2.32	2.86	0.89	18.0	6.3	1.18	.275	3.59	84	3.30	83	8.31	159.5
8	Bert Blyleven B. Blyleven	20	296	122	96	.560	293	3.50	1,558	94	0	2111.0	1,974	820	911	215	620	61	1	36	8,784	52	6.64	2.64	2.51	0.92	17.7	7.1	1.23	.278	3.88	86	3.54	88	8.42	105.9
9	Steve Carlton S. Carlton	20	319	138	107	.563	308	3.37	1,822	79	1	2221.0	2,014	831	958	185	778	20	5	67	9,252	89	7.38	3.15	2.34	0.75	19.7	8.4	1.26	.284	3.88	89	3.23	86	8.16	117.1
10	Nolan Ryan N. Ryan	20	314	120	110	.522	314	3.21	2,121	65	0	2092.0	1,607	745	851	120	971	46	0	35	8,731	116	9.12	4.18	2.18	0.52	24.3	11.1	1.23	.272	3.66	90	2.89	81	6.91	159.7
11	Jack Morris J. Morris	19	329	161	104	.608	308	3.55	1,507	122	0	2342.0	2,084	923	1,001	248	824	24	10	65	9,743	114	5.79	3.17	1.83	0.95	15.5	8.5	1.24	.257	3.85	88	3.90	93	8.01	72.9
12	Geoff Zahn G. Zahn	19	222	93	81	.534	215	3.65	549	71	0	1484.0	1,576	602	693	122	409	11	3	19	6,221	23	3.33	2.48	1.34	0.74	8.8	6.6	1.34	.283	4.20	92	3.87	96	9.56	26.4
13	Mike Caldwell M. Caldwell	18	218	97	72	.574	205	3.69	502	79	2	1510.1	1,607	619	688	155	317	16	2	17	6,271	33	2.99	1.89	1.58	0.92	8.0	5.1	1.27	.275	4.10	96	4.02	104	9.58	-31.1
14	Joe Niekro J. Niekro	18	332	139	120	.537	324	3.48	1,093	73	0	2168.1	2,019	839	969	147	794	48	3	28	9,144	136	4.54	3.30	1.38	0.61	12.0	8.7	1.30	.265	4.02	99	3.75	106	8.38	-60.9
15	Jerry Reuss J. Reuss	18	300	93	81	.534	236	3.42	774	48	8	1607.1	1,645	610	724	98	385	22	36	56	6,740	39	4.33	2.16	2.01	0.55	11.5	5.7	1.26	.283	4.05	95	3.30	91	9.21	57.5
16	Dwight Gooden D. Gooden	16	124	73	26	.737	124	2.46	892	42	0	924.1	718	253	283	48	275	10	0	11	3,694	14	8.69	2.68	3.24	0.47	24.1	7.4	1.07	.271	2.76	68	2.43	66	6.99	127.1
17	Ken Forsch K. Forsch	16	210	69	57	.548	150	3.45	445	54	8	1167.0	1,153	447	495	90	271	29	35	26	4,828	10	3.43	2.09	1.64	0.69	9.2	5.6	1.22	.266	3.82	93	3.71	97	8.89	9.7
18	Dennis Leonard D. Leonard	16	202	92	73	.558	197	3.83	775	58	0	1401.0	1,404	596	665	150	371	21	1	30	5,870	48	4.98	2.38	2.09	0.96	13.2	6.3	1.27	.275	4.27	95	3.81	97	9.02	15.5
19	Floyd Bannister F. Bannister	15	310	109	119	.478	295	3.97	1,417	56	0	1918.2	1,849	847	938	242	661	27	3	24	8,149	67	6.65	3.10	2.14	1.14	17.4	8.1	1.31	.277	4.40	96	3.97	96	8.67	38
20	Mike Flanagan M. Flanagan	15	293	124	95	.566	290	3.88	1,056	79	0	1904.1	1,911	820	893	182	598	20	1	27	8,003	64	4.99	2.83	1.77	0.86	13.2	7.5	1.32	.281	4.22	99	3.82	95	9.03	43.8
21	Phil Niekro P. Niekro	15	344	140	121	.536	336	3.70	1,396	84	2	2311.1	2,245	950	1,084	224	891	48	5	25	9,856	76	5.44	3.47	1.57	0.87	14.2	9.0	1.36	.277	4.22	93	3.98	100	8.74	-2.8
22	Tom Seaver T. Seaver	15	269	108	92	.540	266	3.49	1,110	51	0	1803.0	1,621	699	780	174	591	28	1	48	7,499	51	5.54	2.95	1.88	0.87	14.8	7.9	1.23	.259	3.89	91	3.75	99	8.09	7.6
23	John Tudor J. Tudor	14	220	95	60	.613	208	3.30	829	44	1	1438.2	1,351	528	587	135	398	26	4	21	5,937	18	5.19	2.49	2.08	0.84	14.0	6.7	1.22	.267	3.67	84	3.68	97	8.45	19.3
24	Joaquin Andujar J. Andujar	14	328	105	95	.525	245	3.55	869	55	9	1743.1	1,610	688	758	127	571	41	31	55	7,250	30	4.49	2.95	1.52	0.66	12.0	7.9	1.25	.263	3.91	99	3.72	103	8.31	-30.2
25	Mike Boddicker M. Boddicker	13	169	73	61	.545	159	3.71	736	49	0	1126.2	1,049	465	523	112	393	28	6	19	4,714	35	5.88	3.14	1.87	0.89	15.6	8.3	1.28	.272	4.18	91	3.87	93	8.38	38.4