Board Thread:Questions and Answers/@comment-24035756-20131106203316/@comment-24074672-20131107053926

Initially, there were 28 Quincy to be exact. (Uryu & Bach = "A" / Both Lloyd & Royd = "Y")

The Quincy were essentially created to outnumber the Captain of the Gotei 13 with a 2:1 ratio.

26 Star Knights : 13 Captains

The Quincy has lost so far: Lloyd, Royd, Quilge, Driscoll, Berenice and Jerome.

The Shinigami have lost so far: Old Man Yama & Unohana Retsu

So the ratio then becomes 22:11 <--Still 2:1 ratio