I'm in need of a chart or table that lists the average number of goals per game by season from the past 50 years or so. I've seen them referenced in several articles but searches to find a comprehensive list have fallen in vain. Any assistance would be greatly appreciated.
Look for The Hockey Compendium by Klein and Reif, it has year by year figures for both goals and assists for the NHA, PCHA, WCHL/WHL and WHA from 1908-09 through 2001. Coles here has it for just a couple bucks.
The way to do it is add all the goals (GF and GA are equal sums of course) and divide by the number of games (number of teams X however many games were played by each team that year) and you've got it. As long as you have a calculator handy.