WotLK, class popularity

Greetings,
Simple questions,

- Is there a way to know the real level 80 % of characters of every class?

- If not, try to guess here.

Ex: I think that the most popular classes are:
1. Paladin
2. DK / Druid
3. Warrior / ... Hunter?

Least played classes:
1. Warlock
2. Shaman
3. Rogue?

So...you can't log for 2 min and play without watching at least 5to10 blood elf or human Paladins
... But may be you don't see a Dwarf female warlock in a day.

Regards

It would be nice to know, but we can already guess approximately:

1) paladin, dks and warriors no doubt.
2) hunters and priests maybe
3) mage, druids and shaman, maybe rogue
4) warlocks, almost sure they are the least played

BM Hunter, part of the worst spec in PvE on Wotlk.