Island of 1,000 Condiments

Only 9 Genin graduated from Naruto's Class. If that's yearly, what kind of army did Konoha have? About how many Shinobi were registered? Likewise, how many per rank? This is before the Battle of Konoha. Afterward, wasn't it stated that Konoha lost half its military force? How low would those numbers be? What about Suna and Oto? Konoha was stated to be the most powerful of the Shinobi Countries, but by how much? How well did the combined forces of Suna and Oto compare?

__________________