Purge 1 (KOTOR 2): 15 Purge 2 (Episode 3): around 50-60
567 million survided and 678 million died
Over two hundred.
The Mexicans
Seven. Four survided childhood.
She was killed in the Great Jedi Purge in 19 BBY. See Wookieepedia for more info.
Because after the Jedi Purge in Ep. III, being known as a Jedi was dangerous. So, Kenobi changed his first name and hid in the Jungleland Wastes of Tatooine.
Ahsoka's fate has not been confirmed yet. So there is no real answer to your question just yet
There were many Jedi in Star Wars.
The Jedi Council typically consists of 12 members, including the Grand Master and other Jedi Masters with various positions and responsibilities within the Jedi Order.
Secrets of the Jedi has 203 pages.
Children of the Jedi has 345 pages.
Jedi Trial has 352 pages.