% zcat /home/debian/dists/etch/main/source/Sources.gz | grep 'Package:' | wc -l
10026
% zcat /home/debian/dists/etch/main/source/Sources.gz | grep 'Package:.*perl' | wc -l
1026

so, 10% of the debian source packages are perl modules. How many of them have never been uploaded for years ? how many of them have 10 versions of backlog wrt upstream ?

*shudders*