How many NHL teams in 1975?

	TEAM	SEASON	GP	W	L	T	PTS	PTS%	G	GA	DIFF	S/GP	S%	SA/GP	SV%
1	Canadiens	1974-75	80	47	14	19	113	.706	374	225	149	31.91	14.6	28.44	.901
2	Maple Leafs	1974-75	80	31	33	16	78	.488	280	309	-29	34.24	10.2	32.00	.879
3	Bruins	1974-75	80	40	26	14	94	.588	345	245	100	34.91	12.4	27.90	.890
4	Rangers	1974-75	80	37	29	14	88	.550	319	276	43	33.92	11.8	27.86	.876
5	Black Hawks	1974-75	80	37	35	8	82	.513	268	241	27	30.91	10.8	28.95	.896
6	Red Wings	1974-75	80	23	45	12	58	.363	259	335	-76	29.33	11.0	31.10	.865
7	Golden Seals	1974-75	80	19	48	13	51	.319	212	316	-104	26.86	9.9	33.79	.883
8	Kings	1974-75	80	42	17	21	105	.656	269	185	84	29.25	11.5	29.79	.922
9	North Stars	1974-75	80	23	50	7	53	.331	221	341	-120	27.50	10.0	35.11	.879
10	Flyers	1974-75	80	51	18	11	113	.706	293	181	112	33.70	10.9	25.25	.910
11	Penguins	1974-75	80	37	28	15	89	.556	326	289	37	34.50	11.8	33.90	.893
12	Blues	1974-75	80	35	31	14	84	.525	269	267	2	31.19	10.8	30.61	.891
13	Sabres	1974-75	80	49	16	15	113	.706	354	240	114	36.96	12.0	26.08	.885
14	Canucks	1974-75	80	38	32	10	86	.538	271	254	17	30.38	11.2	29.03	.891
15	Flames	1974-75	80	34	31	15	83	.519	243	233	10	28.35	10.7	31.85	.909
16	Islanders	1974-75	80	33	25	22	88	.550	264	221	43	29.55	11.2	29.30	.906
17	Scouts	1974-75	80	15	54	11	41	.256	184	328	-144	27.79	8.3	35.06	.883
18	Capitals	1974-75	80	8	67	5	21	.131	181	446	-265	23.06	9.8	38.30	.854