About mod download counts

[Elmacik]

mod downloads count so different in different places.
for example,
in mod's own page it says total downloads: 40
again in mod's page but near the file it says downloads: 70
in new mods list, it says downloads: 30
in popular mods list it says downloads: 80

all they are different.. is there something i dont know?
edit: i know noticed, files still seem to be downloaded "0" times but in the list of new mods, but download count increases..
any explanation?