NHL Seasons

LEAGUE STRUCTURE, BY SEASON

#	Season	Teams	Schedule Length	Schedule Factor	Max Roster Size	Roster Factor	Full-Time Skaters	Full-Time Goalies
1	1917-18	3-4	22	3.73	9	0.50	32	3.5
2	1918-19	3	18	4.56	9	0.50	27	3
3	1919-20	4	24	3.42	9	0.50	36	4
4	1920-21	4	24	3.42	9	0.50	36	4
5	1921-22	4	24	3.42	9	0.50	36	4
6	1922-23	4	24	3.42	9	0.50	36	4
7	1923-24	4	24	3.42	9	0.50	36	4
8	1924-25	6	30	2.73	9	0.50	54	6
9	1925-26	7	36	2.28	11	0.61	77	7
10	1926-27	10	44	1.86	11	0.61	110	10
11	1927-28	10	44	1.86	11	0.61	110	10
12	1928-29	10	44	1.86	12	0.67	120	10
13	1929-30	10	44	1.86	15	0.83	150	10
14	1930-31	10	44	1.86	15	0.83	150	10
15	1931-32	8	48	1.71	15	0.83	120	8
16	1932-33	9	48	1.71	14	0.78	126	9
17	1933-34	9	48	1.71	14	0.78	126	9
18	1934-35	9	48	1.71	14	0.78	126	9
19	1935-36	8	48	1.71	14	0.78	112	8
20	1936-37	8	48	1.71	14	0.78	112	8
21	1937-38	8	48	1.71	14	0.78	112	8
22	1938-39	7	48	1.71	15	0.83	105	7
23	1939-40	7	48	1.71	15	0.83	105	7
24	1940-41	7	48	1.71	15	0.83	105	7
25	1941-42	7	48	1.71	15	0.83	105	7
26	1942-43	6	50	1.64	14	0.78	84	6
27	1943-44	6	50	1.64	14	0.78	84	6
28	1944-45	6	50	1.64	14	0.78	84	6
29	1945-46	6	50	1.64	14	0.78	84	6
30	1946-47	6	60	1.37	14	0.78	84	6
31	1947-48	6	60	1.37	14	0.78	84	6
32	1948-49	6	60	1.37	14	0.78	84	6
33	1949-50	6	70	1.17	17	0.94	102	6
34	1950-51	6	70	1.17	17	0.94	102	6
35	1951-52	6	70	1.17	15	0.83	90	6
36	1952-53	6	70	1.17	15.5	0.86	93	6
37	1953-54	6	70	1.17	16	0.89	96	6
38	1954-55	6	70	1.17	17	0.94	102	6
39	1955-56	6	70	1.17	17	0.94	102	6
40	1956-57	6	70	1.17	17	0.94	102	6
41	1957-58	6	70	1.17	17	0.94	102	6
42	1958-59	6	70	1.17	17	0.94	102	6
43	1959-60	6	70	1.17	17	0.94	102	6
44	1960-61	6	70	1.17	16	0.89	96	6
45	1961-62	6	70	1.17	16	0.89	96	6
46	1962-63	6	70	1.17	16	0.89	96	6
47	1963-64	6	70	1.17	16	0.89	96	6
48	1964-65	6	70	1.17	16	0.89	96	6
49	1965-66	6	70	1.17	16	0.89	96	12
50	1966-67	6	70	1.17	16	0.89	96	12
51	1967-68	12	74	1.11	16	0.89	192	24
52	1968-69	12	76	1.08	16	0.89	192	24
53	1969-70	12	76	1.08	16	0.89	192	24
54	1970-71	14	78	1.05	16	0.89	224	28
55	1971-72	14	78	1.05	17	0.94	238	28
56	1972-73	16	78	1.05	17	0.94	272	32
57	1973-74	16	78	1.05	17	0.94	272	32
58	1974-75	18	80	1.03	17	0.94	306	36
59	1975-76	18	80	1.03	17	0.94	306	36
60	1976-77	18	80	1.03	17	0.94	306	36
61	1977-78	18	80	1.03	17	0.94	306	36
62	1978-79	17	80	1.03	17	0.94	289	34
63	1979-80	21	80	1.03	17	0.94	357	42
64	1980-81	21	80	1.03	17	0.94	357	42
65	1981-82	21	80	1.03	17	0.94	357	42
66	1982-83	21	80	1.03	18	1.00	378	42
67	1983-84	21	80	1.03	18	1.00	378	42
68	1984-85	21	80	1.03	18	1.00	378	42
69	1985-86	21	80	1.03	18	1.00	378	42
70	1986-87	21	80	1.03	18	1.00	378	42
71	1987-88	21	80	1.03	18	1.00	378	42
72	1988-89	21	80	1.03	18	1.00	378	42
73	1989-90	21	80	1.03	18	1.00	378	42
74	1990-91	21	80	1.03	18	1.00	378	42
75	1991-92	22	80	1.03	18	1.00	396	44
76	1992-93	24	84	0.98	18	1.00	432	48
77	1993-94	26	84	0.98	18	1.00	468	52
78	1994-95	26	48	1.71	18	1.00	468	52
79	1995-96	26	82	1.00	18	1.00	468	52
80	1996-97	26	82	1.00	18	1.00	468	52
81	1997-98	26	82	1.00	18	1.00	468	52
82	1998-99	27	82	1.00	18	1.00	486	54
83	1999-00	28	82	1.00	18	1.00	504	56
84	2000-01	30	82	1.00	18	1.00	540	60
85	2001-02	30	82	1.00	18	1.00	540	60
86	2002-03	30	82	1.00	18	1.00	540	60
87	2003-04	30	82	1.00	18	1.00	540	60
X	2004-05
88	2005-06	30	82	1.00	18	1.00	540	60
89	2006-07	30	82	1.00	18	1.00	540	60
90	2007-08	30	82	1.00	18	1.00	540	60
91	2008-09	30	82	1.00	18	1.00	540	60
92	2009-10	30	82	1.00	18	1.00	540	60
93	2010-11	30	82	1.00	18	1.00	540	60
94	2011-12	30	82	1.00	18	1.00	540	60
95	2012-13	30	48	1.71	18	1.00	540	60
96	2013-14	30	82	1.00	18	1.00	540	60
97	2014-15	30	82	1.00	18	1.00	540	60
98	2015-16	30	82	1.00	18	1.00	540	60
99	2016-17	30	82	1.00	18	1.00	540	60
100	2017-18	31	82	1.00	18	1.00	558	62
101	2018-19	31	82	1.00	18	1.00	558	62
102	2019-20	31	68-71	1.17	18	1.00	558	62
103	2020-21	31	56	1.46	18	1.00	558	62
104	2021-22	32	82	1.00	18	1.00	576	64
#	Season	Teams	Schedule Length	Schedule Factor	Max Roster Size	Roster Factor	Full-Time Skaters	Full-Time Goalies

^{Schedule Factor = 82 ÷ Schedule Length; Roster Size = Skaters (i.e., forwards and defencemen); Roster Factor = Max Roster Size ÷ 18; Full-Time Skaters = Teams x Max Roster; Full-Time Goalies = Teams x 1 (1917-18 to 1964-65), Teams x 2 (1965-66 to present)}

GOAL AND ASSIST AVERAGES, BY SEASON

#	Season	Team G/GP	Total G/GP	Goal Factor	A/G	Total A/GP	Assist Factor
1	1917-18	4.75	9.50	0.63	0.42	4.03	2.48
2	1918-19	4.13	8.26	0.73	0.51	4.19	2.39
3	1919-20	4.79	9.58	0.63	0.45	4.29	2.33
4	1920-21	4.23	8.46	0.71	0.44	3.71	2.70
5	1921-22	3.96	7.92	0.76	0.61	4.79	2.09
6	1922-23	3.26	6.52	0.92	0.67	4.37	2.29
7	1923-24	2.66	5.32	1.13	0.56	2.96	3.38
8	1924-25	2.50	5.00	1.20	0.63	3.14	3.18
9	1925-26	2.31	4.62	1.30	0.44	2.01	4.97
10	1926-27	2.00	4.00	1.50	0.48	1.93	5.17
11	1927-28	1.90	3.80	1.58	0.50	1.91	5.23
12	1928-29	1.46	2.92	2.05	0.60	1.75	5.71
13	1929-30	2.96	5.92	1.01	0.84	4.98	2.01
14	1930-31	2.40	4.80	1.25	0.93	4.45	2.25
15	1931-32	2.49	4.98	1.20	1.05	5.22	1.92
16	1932-33	2.28	4.56	1.32	1.21	5.52	1.81
17	1933-34	2.41	4.82	1.24	1.13	5.47	1.83
18	1934-35	2.52	5.04	1.19	1.31	6.58	1.52
19	1935-36	2.16	4.32	1.39	1.40	6.07	1.65
20	1936-37	2.46	4.92	1.22	1.27	6.25	1.60
21	1937-38	2.53	5.06	1.19	1.40	7.10	1.41
22	1938-39	2.53	5.06	1.19	1.55	7.84	1.28
23	1939-40	2.49	4.98	1.20	1.47	7.31	1.37
24	1940-41	2.68	5.36	1.12	1.50	8.05	1.24
25	1941-42	3.12	6.24	0.96	1.55	9.67	1.03
26	1942-43	3.61	7.22	0.83	1.52	10.99	0.91
27	1943-44	4.08	8.16	0.74	1.43	11.67	0.86
28	1944-45	3.68	7.36	0.82	1.20	8.85	1.13
29	1945-46	3.34	6.68	0.90	1.14	7.62	1.31
30	1946-47	3.16	6.32	0.95	1.30	8.21	1.22
31	1947-48	2.93	5.86	1.02	1.37	8.03	1.25
32	1948-49	2.72	5.44	1.10	1.36	7.41	1.35
33	1949-50	2.73	5.46	1.10	1.45	7.92	1.26
34	1950-51	2.71	5.42	1.11	1.44	7.79	1.28
35	1951-52	2.60	5.20	1.15	1.50	7.78	1.29
36	1952-53	2.40	4.80	1.25	1.50	7.22	1.39
37	1953-54	2.40	4.80	1.25	1.54	7.40	1.35
38	1954-55	2.52	5.04	1.19	1.56	7.86	1.27
39	1955-56	2.53	5.06	1.19	1.59	8.04	1.24
40	1956-57	2.69	5.38	1.12	1.61	8.67	1.15
41	1957-58	2.80	5.60	1.07	1.65	9.26	1.08
42	1958-59	2.90	5.80	1.03	1.63	9.47	1.06
43	1959-60	2.95	5.90	1.02	1.66	9.82	1.02
44	1960-61	3.00	6.00	1.00	1.65	9.90	1.01
45	1961-62	3.01	6.02	1.00	1.65	9.95	1.00
46	1962-63	2.97	5.94	1.01	1.62	9.63	1.04
47	1963-64	2.78	5.56	1.08	1.64	9.13	1.10
48	1964-65	2.88	5.76	1.04	1.62	9.35	1.07
49	1965-66	3.04	6.08	0.99	1.66	10.07	0.99
50	1966-67	2.98	5.96	1.01	1.64	9.78	1.02
51	1967-68	2.79	5.58	1.08	1.62	9.06	1.10
52	1968-69	2.98	5.96	1.01	1.65	9.82	1.02
53	1969-70	2.90	5.80	1.03	1.61	9.36	1.07
54	1970-71	3.12	6.24	0.96	1.63	10.19	0.98
55	1971-72	3.07	6.14	0.98	1.61	9.91	1.01
56	1972-73	3.28	6.56	0.91	1.64	10.78	0.93
57	1973-74	3.20	6.40	0.94	1.63	10.40	0.96
58	1974-75	3.43	6.86	0.87	1.63	11.16	0.90
59	1975-76	3.41	6.82	0.88	1.63	11.14	0.90
60	1976-77	3.32	6.64	0.90	1.63	10.81	0.93
61	1977-78	3.30	6.60	0.91	1.63	10.77	0.93
62	1978-79	3.50	7.00	0.86	1.64	11.51	0.87
63	1979-80	3.51	7.02	0.85	1.63	11.41	0.88
64	1980-81	3.84	7.68	0.78	1.63	12.53	0.80
65	1981-82	4.01	8.02	0.75	1.66	13.29	0.75
66	1982-83	3.86	7.72	0.78	1.65	12.71	0.79
67	1983-84	3.94	7.88	0.76	1.64	12.95	0.77
68	1984-85	3.89	7.78	0.77	1.66	12.95	0.77
69	1985-86	3.97	7.94	0.76	1.65	13.13	0.76
70	1986-87	3.67	7.34	0.82	1.65	12.14	0.82
71	1987-88	3.71	7.42	0.81	1.66	12.34	0.81
72	1988-89	3.74	7.48	0.80	1.67	12.50	0.80
73	1989-90	3.68	7.36	0.82	1.67	12.30	0.81
74	1990-91	3.46	6.92	0.87	1.68	11.62	0.86
75	1991-92	3.48	6.96	0.86	1.68	11.71	0.85
76	1992-93	3.63	7.26	0.83	1.68	12.23	0.82
77	1993-94	3.24	6.48	0.93	1.67	10.81	0.93
78	1994-95	2.99	5.98	1.00	1.66	9.95	1.01
79	1995-96	3.14	6.28	0.96	1.67	10.46	0.96
80	1996-97	2.92	5.84	1.03	1.66	9.67	1.03
81	1997-98	2.64	5.28	1.14	1.66	8.78	1.14
82	1998-99	2.63	5.26	1.14	1.68	8.86	1.13
83	1999-00	2.75	5.50	1.09	1.69	9.29	1.08
84	2000-01	2.76	5.52	1.09	1.70	9.40	1.06
85	2001-02	2.62	5.24	1.15	1.69	8.84	1.13
86	2002-03	2.65	5.30	1.13	1.71	9.05	1.10
87	2003-04	2.57	5.14	1.17	1.70	8.75	1.14
X	2004-05
88	2005-06	3.03	6.05	0.99	1.73	10.47	0.96
89	2006-07	2.88	5.76	1.04	1.75	10.08	0.99
90	2007-08	2.72	5.44	1.10	1.73	9.40	1.06
91	2008-09	2.85	5.70	1.05	1.73	9.88	1.01
92	2009-10	2.77	5.53	1.08	1.73	9.57	1.04
93	2010-11	2.73	5.46	1.10	1.72	9.38	1.07
94	2011-12	2.66	5.32	1.13	1.72	9.16	1.09
95	2012-13	2.66	5.31	1.13	1.73	9.17	1.09
96	2013-14	2.67	5.34	1.12	1.72	9.18	1.09
97	2014-15	2.66	5.32	1.13	1.72	9.17	1.09
98	2015-16	2.67	5.34	1.12	1.68	8.98	1.11
99	2016-17	2.73	5.45	1.10	1.68	9.17	1.09
100	2017-18	2.93	5.86	1.02	1.69	9.92	1.01
101	2018-19	2.98	5.96	1.01	1.69	10.06	0.99
102	2019-20	2.98	5.96	1.01	1.68	10.00	1.00
103	2020-21	2.90	5.80	1.04	1.69	9.81	1.02
104	2021-22	3.11	6.21	0.97	1.70	10.43	0.96
#	Season	Team G/GP	Total G/GP	Goal Factor	A/G	Total A/GP	Assist Factor

^{G = Goals; GP = Games Played; Goal Factor = 6 ÷ Total G/GP; A = Assists; Assist Factor = 10 ÷ Total A/GP}

MISCELLANEOUS DATA, PER SEASON

Note: blank spaces denote that the statistic was not tracked at time

#	Season	Total NHL GP	Team Shots/GP	Save %	Team PPG/GP	Team PPO/GP	PP%	PK%
1	1917-18	36
2	1918-19	27
3	1919-20	48
4	1920-21	48
5	1921-22	48
6	1922-23	48
7	1923-24	48
8	1924-25	90
9	1925-26	126
10	1926-27	220
11	1927-28	220
12	1928-29	220
13	1929-30	220
14	1930-31	220
15	1931-32	192
16	1932-33	216
17	1933-34	216
18	1934-35	216
19	1935-36	192
20	1936-37	192
21	1937-38	192
22	1938-39	168
23	1939-40	168
24	1940-41	168
25	1941-42	168
26	1942-43	150
27	1943-44	150
28	1944-45	150
29	1945-46	150
30	1946-47	180
31	1947-48	180
32	1948-49	180
33	1949-50	210
34	1950-51	210
35	1951-52	210
36	1952-53	210
37	1953-54	210
38	1954-55	210
39	1955-56	210	30.8	.919
40	1956-57	210	29.8	.911
41	1957-58	210	30.4	.909
42	1958-59	210	30.3	.905
43	1959-60	210	31.6	.908
44	1960-61	210	32.2	.908
45	1961-62	210	31.6	.906
46	1962-63	210	31.8	.908
47	1963-64	210	32.8	.916	0.57	3.64	15.7	84.3
48	1964-65	210	31.1	.909	0.69	4.38	15.8	84.2
49	1965-66	210	31.5	.904	0.71	3.76	18.9	81.1
50	1966-67	210	31.8	.907	0.60	3.32	18.1	81.9
51	1967-68	444	30.4	.910	0.55	3.28	16.9	83.1
52	1968-69	456	32.1	.908	0.60	3.47	17.4	82.6
53	1969-70	456	32.6	.912	0.73	3.73	19.5	80.5
54	1970-71	546	31.8	.903	0.69	3.66	18.8	81.2
55	1971-72	546	30.9	.903	0.67	3.45	19.4	80.6
56	1972-73	624	31.1	.896	0.63	3.34	18.7	81.3
57	1973-74	624	30.3	.896	0.63	3.30	19.1	80.9
58	1974-75	720	30.7	.890	0.80	3.95	20.3	79.7
59	1975-76	720	30.6	.890	0.82	4.01	20.5	79.5
60	1976-77	720	30.0	.891	0.66	3.31	19.8	80.2
61	1977-78	720	29.2	.889	0.67	3.19	21.2	78.9
62	1978-79	680	29.3	.883	0.77	3.38	22.7	77.3
63	1979-80	840	29.3	.882	0.77	3.50	21.9	78.1
64	1980-81	840	30.4	.876	0.96	4.25	22.5	77.5
65	1981-82	840	31.1	.873	0.91	4.00	22.9	77.2
66	1982-83	840	30.5	.875	0.89	3.87	22.9	77.1
67	1983-84	840	30.5	.873	0.92	4.20	21.9	78.1
68	1984-85	840	30.5	.875	0.89	4.01	22.2	77.8
69	1985-86	840	31.0	.874	1.02	4.62	22.1	77.9
70	1986-87	840	29.9	.880	0.90	4.30	21.0	79.0
71	1987-88	840	30.4	.880	1.11	5.46	20.3	79.7
72	1988-89	840	30.3	.879	1.06	5.04	21.0	79.0
73	1989-90	840	30.2	.881	0.95	4.58	20.8	79.2
74	1990-91	840	29.7	.886	0.89	4.57	19.4	80.6
75	1991-92	880	30.4	.888	0.97	5.02	19.2	80.8
76	1992-93	1,008	30.9	.885	1.03	5.28	19.6	80.4
77	1993-94	1,092	30.2	.895	0.90	4.85	18.6	81.4
78	1994-95	624	29.3	.901	0.77	4.36	17.7	82.3
79	1995-96	1,066	30.2	.898	0.90	5.04	17.9	82.1
80	1996-97	1,066	29.7	.905	0.67	4.10	16.3	83.7
81	1997-98	1,066	27.3	.906	0.70	4.64	15.1	84.9
82	1998-99	1,107	27.8	.908	0.69	4.38	15.8	84.2
83	1999-00	1,148	27.9	.904	0.65	4.03	16.2	83.9
84	2000-01	1,230	27.6	.903	0.76	4.59	16.6	83.4
85	2001-02	1,230	27.5	.908	0.65	4.13	15.8	84.2
86	2002-03	1,230	28.3	.909	0.73	4.42	16.4	83.6
87	2003-04	1,230	28.0	.911	0.70	4.24	16.5	83.5
X	2004-05
88	2005-06	1,230	29.9	.901	1.03	5.85	17.7	82.3
89	2006-07	1,230	29.5	.905	0.85	4.85	17.6	82.4
90	2007-08	1,230	29.0	.909	0.76	4.28	17.8	82.3
91	2008-09	1,230	30.1	.908	0.79	4.16	19.0	81.1
92	2009-10	1,230	30.2	.911	0.68	3.71	18.2	81.8
93	2010-11	1,230	30.3	.913	0.64	3.54	18.0	82.0
94	2011-12	1,230	29.7	.914	0.57	3.31	17.3	82.7
95	2012-13	720	29.0	.912	0.61	3.32	18.2	81.8
96	2013-14	1,230	30.0	.914	0.59	3.27	17.9	82.1
97	2014-15	1,230	29.8	.915	0.57	3.06	18.7	81.3
98	2015-16	1,230	29.6	.915	0.58	3.11	18.7	81.3
99	2016-17	1,230	30.1	.913	0.57	2.99	19.1	80.9
100	2017-18	1,271	31.8	.912	0.61	3.04	20.2	79.8
101	2018-19	1,271	31.3	.910	0.58	2.92	19.8	80.2
102	2019-20	1,082	31.3	.910	0.60	2.97	20.0	80.0
103	2020-21	868	29.8	.908	0.57	2.89	19.8	80.2
104	2021-22	1,312	31.4	.907	0.60	2.89	20.6	79.4
#	Season	Total NHL GP	Team Shots/GP	Save %	Team PPG/GP	Team PPO/GP	PP%	PK%

^{GP = Games Played; PPG = Power Play Goals; PPO = Power Play Opportunities; PP% = Power Play %; PK% = Penalty Kill %}

Factors calculated by Adjusted Hockey;.
All other data from Hockey-Reference.com;

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