You're quite right Wynonie I hadn't taken the large Torquay gate into account, but as Mike says, it doesn't make an enormous amount of difference (less than 120 per match).
We aren't the only ones to be losing out of course, although L2 attendances are up on average by 2.2% compare to last year. See here for the full figures:
http://www.tonykempster.co.uk/attcomp.htm