which relief pitcher has the highest k/9 in a season with at least 70 innings pitched

Josh Hader has the best K/9 by a relief pitcher with 70.0+ innings pitched in a season, with 16.41 per nine innings in 2019.

	NAME	K/9	IP	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Josh Hader J. Hader	16.41	75.2	2019	MIL	61	3	5	.375	0	2.62	138	0	0	37	41	22	24	15	20	4	46	2	289	0	2.38	6.90	1.78	47.8	6.9	0.81	.232	2.85	4.88
2	Carlos Marmol C. Marmol	15.99	77.2	2010	CHC	77	2	3	.400	0	2.55	138	0	0	38	40	22	23	1	52	8	70	4	332	2	6.03	2.65	0.12	41.6	15.7	1.18	.293	2.67	4.64
3	Josh Hader J. Hader	15.82	81.1	2018	MIL	55	6	1	.857	0	2.43	143	0	0	12	36	22	23	9	30	1	14	0	306	0	3.32	4.77	1.00	46.7	9.8	0.81	.220	2.55	3.98
4	Dellin Betances D. Betances	15.53	73.0	2016	NYY	73	3	6	.333	0	3.08	126	0	0	12	54	25	31	5	28	1	20	0	299	6	3.45	4.50	0.62	42.1	9.4	1.12	.353	3.82	6.66
5	Aroldis Chapman A. Chapman	15.32	71.2	2012	CIN	68	5	5	.500	0	1.51	122	0	0	38	35	12	13	4	23	4	52	0	276	4	2.89	5.30	0.50	44.2	8.3	0.81	.252	1.63	4.40
6	Edwin Díaz E. Díaz	15.22	73.1	2018	SEA	73	0	4	.000	0	1.96	124	0	0	57	41	16	17	5	17	6	65	0	280	3	2.09	7.29	0.61	44.3	6.1	0.79	.281	2.09	5.03
7	Eric Gagne E. Gagne	14.98	82.1	2003	LAD	77	2	3	.400	0	1.20	137	0	0	55	37	11	12	2	20	3	67	2	306	2	2.19	6.85	0.22	44.8	6.5	0.69	.243	1.31	4.04
8	Billy Wagner B. Wagner	14.95	74.2	1999	HOU	66	4	1	.800	0	1.57	124	0	0	39	35	13	14	5	23	1	55	1	286	2	2.77	5.39	0.60	43.4	8.0	0.78	.226	1.69	4.22
9	Brad Lidge B. Lidge	14.93	94.2	2004	HOU	80	6	5	.545	0	1.90	157	0	0	29	57	20	21	8	30	6	44	5	369	3	2.85	5.23	0.76	42.5	8.1	0.92	.292	2.00	5.42
10	Corey Knebel C. Knebel	14.92	76.0	2017	MIL	76	1	4	.200	0	1.78	126	0	0	39	48	15	15	6	40	2	48	5	309	2	4.74	3.15	0.71	40.8	12.9	1.16	.311	1.78	5.68
11	Andrew Miller A. Miller	14.89	74.1	2016	TOT	70	10	1	.909	0	1.45	123	0	0	12	42	12	13	8	9	2	23	0	275	1	1.09	13.67	0.97	44.7	3.3	0.69	.256	1.57	5.09
12	Craig Kimbrel C. Kimbrel	14.84	77.0	2011	ATL	79	4	3	.571	0	2.10	127	0	0	46	48	18	19	3	32	1	64	1	306	4	3.74	3.97	0.35	41.5	10.5	1.04	.315	2.22	5.61
13	Armando Benitez A. Benitez	14.77	78.0	1999	NYM	77	4	3	.571	0	1.85	128	0	0	22	40	16	17	4	41	0	42	4	312	2	4.73	3.12	0.46	41.0	13.1	1.04	.259	1.96	4.62
14	Liam Hendriks L. Hendriks	14.32	71.0	2021	CWS	69	8	3	.727	0	2.54	113	0	0	38	45	20	23	11	7	1	58	1	267	6	0.89	16.14	1.39	42.3	2.6	0.73	.252	2.92	5.70
15	Rob Dibble R. Dibble	14.08	70.1	1992	CIN	63	3	5	.375	0	3.07	110	0	0	25	48	24	26	3	31	2	49	2	286	6	3.97	3.55	0.38	38.5	10.8	1.12	.321	3.33	6.14
16	Dellin Betances D. Betances	14.04	84.0	2015	NYY	74	6	4	.600	0	1.50	131	0	0	9	45	14	17	6	40	3	17	2	332	9	4.29	3.28	0.64	39.5	12.0	1.01	.257	1.82	4.82
17	Kyle Barraclough K. Barraclough	14.00	72.2	2016	MIA	75	6	3	.667	0	2.85	113	0	0	0	45	23	24	1	44	2	6	1	306	8	5.45	2.57	0.12	36.9	14.4	1.22	.301	2.97	5.57
18	Octavio Dotel O. Dotel	13.71	84.0	2001	HOU	57	6	3	.667	0	1.93	128	0	0	2	55	18	21	3	33	2	20	1	339	4	3.54	3.88	0.32	37.8	9.7	1.05	.301	2.25	5.89
19	Matt Brash M. Brash	13.63	70.2	2023	SEA	78	9	4	.692	0	3.06	107	0	0	4	65	24	26	3	29	6	7	0	308	11	3.69	3.69	0.38	34.7	9.4	1.33	.380	3.31	8.28
20	Wade Davis W. Davis	13.63	72.0	2014	KCR	71	9	2	.818	0	1.00	109	0	0	3	38	8	8	0	23	3	11	0	279	1	2.88	4.74	0.00	39.1	8.2	0.85	.264	1.00	4.75
21	Rob Dibble R. Dibble	13.55	82.1	1991	CIN	67	3	5	.375	0	3.17	124	0	0	31	67	29	32	5	25	0	57	2	334	5	2.73	4.96	0.55	37.1	7.5	1.12	.344	3.50	7.32
22	Dellin Betances D. Betances	13.50	90.0	2014	NYY	70	5	0	1.000	0	1.40	135	0	0	1	46	14	15	4	24	4	8	1	341	2	2.40	5.63	0.40	39.6	7.0	0.78	.241	1.50	4.60
23	Jonathan Broxton J. Broxton	13.50	76.0	2009	LAD	73	7	2	.778	0	2.61	114	0	0	36	44	22	24	4	29	1	58	1	300	2	3.43	3.93	0.47	38.0	9.7	0.96	.263	2.84	5.21
24	Jeremiah Estrada J. Estrada	13.32	73.0	2025	SDP	77	4	5	.444	0	3.45	108	0	0	3	58	28	31	12	27	3	7	2	304	3	3.33	4.00	1.48	35.5	8.9	1.16	.299	3.82	7.15
25	Bryan Abreu B. Abreu	13.31	71.0	2025	HOU	70	3	4	.429	0	2.28	105	0	0	7	51	18	18	4	31	4	19	0	296	4	3.93	3.39	0.51	35.5	10.5	1.15	.309	2.28	6.46