The graph shows the average Non-Penalty Goals per 90 minutes and the average Assists per 90 minutes over the 5 best Top-5-League seasons of these players. The 5 best league seasons were defined by me as the 5 seasons with the highest Non-Penalty Goals + Assists per 90 minutes ratio, but only seasons in which the player played at least 12 90s (= 1080 minutes) are up for consideration. If a player only had 5 such seasons, all these 5 will be considered as the 5 peak seasons, and if a player had 4 seasons with enough game time, these 4 were considered as the peak seasons. If a player had less than 4 seasons with 1080 minutes, then he was not included in the graph.
