Lakewhat: There are tons of Litvaks. Anyway, this term is nowadays used as a synonym for Yeshivish. Here’s how many children were enrolled in different kinds of Orthodox day schools in 2013, according to an Avichai survey:
Centrist Orthodox: 18,925
Chabad: 12,649
Chassidic: 81,940
Modern Orthodox: 27,217
Yeshiva: 75,681
This shows that the Yeshiva world is very large, only a little smaller than the Chassidish world.