Curious Orange
Punxsatawney Phil
Hmm, that only shows the average attendance, so isn't really that helpful in the whole 'never filled Withdean' argument. Could really do with a source that shows the ground capacity for that season and what the largest crowd was.
However, judging by the average for the first season at Withdean and knowing the capacity was 6k makes me think it must have been full pretty much of the time. In fact those figures seem to suggest that there was only about three seasons when the average attendance was poor, given the capacity.