NHL Single-Season Power-Play Goals Record Progression

Year	Player	PPG	Stood for
1985	TK Tim Kerr	34	still standing
1980	MB Mike Bossy	28	5 years
1971	Phil Esposito	27	9 years
1970	Phil Esposito	24	1 year
1965	Bobby Hull	22	5 years
1953	Camille Henry	20	12 years
1949	Maurice Richard	13	4 years
1946	Maurice Richard	12	3 years
1944	Maurice Richard	11	2 years
1933	JS John Sorrell	10	11 years

The earliest marks here are records only in the sense that nobody had done better yet. Season length, schedule and the rules themselves have all changed, so a figure from the 1870s is not comparable with a modern one and is not offered as though it were.