which team has the most shutouts in a season since 1970

Since 1970, the Los Angeles Dodgers have pitched the most shutouts by a team in a season, with 21 shutouts in 1972.

	TEAM	SHO	SEASON	G	W%	W	L	GS	ERA	SO	CG	SV	IP	H	ER	R	HR	BB	HBP	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Dodgers	21	1972	155	.548	85	70	155	2.78	856	50	29	1403.0	1,196	434	527	83	429	34	36	5,795	43	5.49	2.75	2.00	0.53	14.8	7.4	1.16	.253	3.38	7.67
2	Orioles	19	1975	159	.566	90	69	159	3.17	717	70	21	1451.0	1,285	511	553	110	500	12	46	5,943	42	4.45	3.10	1.43	0.68	12.1	8.4	1.23	.255	3.43	7.97
3	Cubs	18	1972	156	.548	85	70	156	3.22	824	54	32	1398.2	1,329	500	567	112	421	34	56	5,848	32	5.30	2.71	1.96	0.72	14.1	7.2	1.25	.273	3.65	8.55
4	Red Sox	18	1972	155	.548	85	70	155	3.47	918	48	25	1382.2	1,309	533	620	101	512	39	49	5,875	32	5.98	3.33	1.79	0.66	15.6	8.7	1.32	.281	4.04	8.52
5	Orioles	18	1972	154	.519	80	74	154	2.53	788	62	21	1371.2	1,116	386	430	85	395	15	52	5,493	35	5.17	2.59	1.99	0.56	14.3	7.2	1.10	.245	2.82	7.32
6	Mets	17	1988	160	.625	100	60	160	2.91	1,100	31	46	1439.0	1,253	465	532	78	404	35	33	5,877	41	6.88	2.53	2.72	0.49	18.7	6.9	1.15	.276	3.33	7.84
7	Cardinals	17	1985	162	.623	101	61	162	3.10	798	37	44	1464.0	1,343	505	572	98	453	28	80	6,048	33	4.91	2.78	1.76	0.60	13.2	7.5	1.23	.267	3.52	8.26
8	Astros	17	1979	162	.549	89	73	162	3.20	854	55	31	1447.2	1,278	514	582	90	504	24	24	6,014	55	5.31	3.13	1.69	0.56	14.2	8.4	1.23	.262	3.62	7.95
9	Mets	17	1976	162	.531	86	76	162	2.94	1,025	53	25	1449.0	1,248	473	538	97	419	23	56	5,908	43	6.37	2.60	2.45	0.60	17.3	7.1	1.15	.265	3.34	7.75
10	Dodgers	17	1975	162	.543	88	74	162	2.92	894	51	21	1469.2	1,215	477	534	104	448	28	20	6,015	34	5.47	2.74	2.00	0.64	14.9	7.4	1.13	.245	3.27	7.44
11	Twins	17	1973	162	.500	81	81	162	3.77	879	48	34	1451.2	1,443	608	692	115	519	36	16	6,210	61	5.45	3.22	1.69	0.71	14.2	8.4	1.35	.285	4.29	8.95
12	Angels	17	1972	155	.484	75	80	155	3.06	1,000	57	16	1377.2	1,109	469	533	90	620	28	53	5,747	49	6.53	4.05	1.61	0.59	17.4	10.8	1.26	.254	3.48	7.24
13	Dodgers	16	1985	162	.586	95	67	162	2.96	979	37	36	1465.0	1,280	482	579	102	462	21	56	6,043	42	6.01	2.84	2.12	0.63	16.2	7.6	1.19	.263	3.56	7.86
14	Giants	16	1978	162	.549	89	73	162	3.30	840	42	29	1455.0	1,377	534	594	84	453	22	76	6,090	32	5.20	2.80	1.85	0.52	13.8	7.4	1.26	.276	3.67	8.52
15	Brewers	16	1978	162	.574	93	69	162	3.65	577	62	24	1436.0	1,442	583	650	109	398	41	26	6,060	34	3.62	2.49	1.45	0.68	9.5	6.6	1.28	.270	4.07	9.04
16	Dodgers	16	1976	162	.568	92	70	162	3.02	747	47	28	1470.2	1,330	493	543	97	479	23	31	6,085	32	4.57	2.93	1.56	0.59	12.3	7.9	1.23	.260	3.32	8.14
17	Rangers	16	1974	161	.525	84	76	161	3.82	871	62	12	1433.2	1,423	609	698	126	449	40	25	6,063	51	5.47	2.82	1.94	0.79	14.4	7.4	1.31	.283	4.38	8.93
18	Cubs	16	1971	162	.512	83	79	162	3.61	900	75	13	1444.0	1,458	579	648	132	411	26	53	6,094	38	5.61	2.56	2.19	0.82	14.8	6.7	1.29	.287	4.04	9.09
19	White Sox	16	1971	162	.488	79	83	162	3.12	976	46	32	1450.1	1,348	503	597	100	468	29	38	6,089	43	6.06	2.90	2.09	0.62	16.0	7.7	1.25	.276	3.70	8.36
20	Dodgers	15	1988	162	.584	94	67	162	2.96	1,029	32	49	1463.1	1,291	482	544	84	473	22	61	6,050	43	6.33	2.91	2.18	0.52	17.0	7.8	1.21	.272	3.35	7.94
21	Dodgers	15	1981	110	.573	63	47	110	3.01	603	26	24	997.0	904	333	356	54	302	14	38	4,099	19	5.44	2.73	2.00	0.49	14.7	7.4	1.21	.272	3.21	8.16
22	Dodgers	15	1980	163	.564	92	71	163	3.25	835	24	42	1472.2	1,358	531	591	105	480	12	48	6,117	32	5.10	2.93	1.74	0.64	13.7	7.8	1.25	.267	3.61	8.30
23	Rangers	15	1976	162	.469	76	86	162	3.45	773	63	15	1472.0	1,464	565	652	106	461	31	31	6,209	46	4.73	2.82	1.68	0.65	12.4	7.4	1.31	.281	3.99	8.95
24	Astros	15	1976	162	.494	80	82	162	3.56	780	42	29	1444.1	1,349	571	657	82	662	25	43	6,213	57	4.86	4.13	1.18	0.51	12.6	10.7	1.39	.272	4.09	8.41
25	Braves	15	1974	163	.543	88	74	163	3.05	772	46	22	1474.1	1,343	500	563	97	488	26	55	6,131	33	4.71	2.98	1.58	0.59	12.6	8.0	1.24	.262	3.44	8.20