Power play statistics
A team's success is measured on special teams is measured by what percentage of power plays feature a goal. A power play is any time a team is up by one player as the result of a penalty or having fewer players in the penalty box than the other team. Even if it is 5 seconds long, it counts as a power play.
Instead, let's have a goals-per-minute measurement. So that 5 seconds on the power play counts as 5 seconds, and the full 2 minutes counts as two minutes. If the goal is scored before the power play is over, then the amount of time spent on the power play is recorded.
If it's a 5-minute powerplay and they score two or more goals?
If it's a two-man power play?
It should be easier to score, so that should get factored in the math.
Maybe because it was easier to score, we should double the time spent on the power play.
That is, one second on a two-man power play counts as 2 seconds, and when the two-man advantage is over, it counts as 1 second?
How many more times likely is a team going to score on a two-man power play?