[GioforPM]

Prior to the 1993-94 NHL season, teams on average scored 3.63 goals per game or a combined game score of 7.26 goals being scored each game. The following season these averages started a percipitous decline to 3.24 and 6.48.
Scoring reached a low of 2.56 goals per team per game and a total of 5.12 goals per game in the 2003-04 season - this was 2.14 less goals per game than the 1992-93 NHL season.

http://www.sportingcharts.com/dictio...-puck-era.aspx