when did the islanders have their best power play percentage in a season

The New York Islanders had their highest power-play percentage in a season in 1977-78, at 31.4 percent.

	TEAM	PP%	SEASON	GP	W	L	T	OTL	PTS	PTS%	SOW	SOL	G	GA	DIFF	PK%	S/GP	S%	SA/GP	SV%
1	Islanders	31.4	1977-78	80	48	17	15		111	.694			334	210	124	83.5	31.13	13.4	28.20	.907
2	Islanders	31.2	1978-79	80	51	15	14		116	.725			358	214	144	80.2	28.76	15.6	28.86	.907
3	Islanders	29.3	1980-81	80	48	18	14		110	.688			355	260	95	79.3	30.21	14.7	30.23	.892
4	Islanders	27.8	1981-82	80	54	16	10		118	.738			385	250	135	79.9	30.86	15.6	30.08	.896
5	Islanders	26.0	1982-83	80	42	26	12		96	.600			302	226	76	83.7	30.36	12.4	29.96	.906
6	Islanders	25.1	1984-85	80	40	34	6		86	.538			345	312	33	82.2	30.19	14.3	32.41	.880
7	Islanders	25.1	1986-87	80	35	33	12		82	.513			279	281	-2	78.0	31.01	11.2	27.84	.874
8	Islanders	23.6	1989-90	80	31	38	11		73	.456			281	288	-7	76.5	29.49	11.9	33.53	.893
9	Islanders	23.4	1979-80	80	39	28	13		91	.569			281	247	34	77.6	27.71	12.7	29.95	.897
10	Islanders	23.2	2017-18	82	35	37		10	80	.488	3	3	261	293	-32	73.2	31.37	10.1	35.59	.900
11	Islanders	22.7	1985-86	80	39	29	12		90	.563			327	284	43	78.4	29.40	13.9	33.24	.893
12	Islanders	22.5	1983-84	80	50	26	4		104	.650			357	269	88	81.5	30.28	14.7	33.39	.899
13	Islanders	22.5	1988-89	80	28	47	5		61	.381			265	325	-60	73.6	30.36	10.9	30.79	.868
14	Islanders	22.5	1987-88	80	39	31	10		88	.550			308	267	41	77.4	30.21	12.7	31.61	.894
15	Islanders	22.1	1991-92	80	34	35	11		79	.494			291	299	-8	76.5	27.83	13.1	32.88	.886
16	Islanders	22.1	2021-22	82	37	35		10	84	.512	2	6	229	231	-2	84.2	28.87	9.7	32.55	.913
17	Islanders	21.6	1992-93	84	40	37	7		87	.518			335	297	38	79.5	31.02	12.9	29.42	.880
18	Islanders	20.3	2023-24	82	39	27		16	94	.573	1	5	245	258	-13	71.5	30.12	9.9	32.76	.904
19	Islanders	20.1	1993-94	84	36	36	12		84	.500			282	264	18	81.1	29.89	11.2	30.49	.897
20	Islanders	19.9	2012-13	48	24	17		7	55	.573	4	3	135	136	-1	80.3	30.94	9.1	28.17	.899
21	Islanders	18.8	1995-96	82	22	50	10		54	.329			229	315	-86	78.3	28.17	9.9	32.04	.880
22	Islanders	18.8	2020-21	56	32	17		7	71	.634	4	3	152	125	27	83.7	28.98	9.4	28.39	.921
23	Islanders	18.7	2014-15	82	47	28		7	101	.616	7	6	245	224	21	78.0	33.79	8.8	28.30	.903
24	Islanders	18.5	2011-12	82	34	37		11	79	.482	7	4	196	251	-55	80.5	29.39	8.1	30.11	.898
25	Islanders	18.3	2015-16	82	45	27		10	100	.610	5	5	227	211	16	84.5	29.41	9.4	30.43	.915