Add blank line and remove dead line
Also weight each season by the same weight as used for the players
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Don't weight it! The season is already weighted

This means resetting the PAs is in vain too.
Don't reset the PAs

In order to scale the numbers properly, need to not reset the weighting
used.
Sum up the league average as we go

Since every row needs to be summed up anyway and need to iterate over
each row, do both steps at the same time.