Table: gp2_drivers
Columns: country
total_drivers
champions
championships
current_september_22_2013
first_driver_s
last_current_driver_s_september_22_2013

Question: How many champions were there when the first driver was hiroki yoshimoto ( 2005 )?
SQL: SELECT "champions" FROM gp2_drivers WHERE "first_driver_s" = 'Hiroki Yoshimoto ( 2005 )'

Question: How many entries are there for total drivers when the Last driver for september 22, 2013 was gianmarco raimondo?
SQL: SELECT "total_drivers" FROM gp2_drivers WHERE "last_current_driver_s_september_22_2013" = 'Gianmarco Raimondo'

Question: How many champions were there when the last driver for September 22, 2013 was vladimir arabadzhiev ( 2010 )?
SQL: SELECT "champions" FROM gp2_drivers WHERE "last_current_driver_s_september_22_2013" = 'Vladimir Arabadzhiev ( 2010 )'

Question: How many entries are there for first driver for Canada?
SQL: SELECT COUNT("first_driver_s") FROM gp2_drivers WHERE "country" = 'Canada'

Question: How many champions were there when the last driver was Gianmarco Raimondo?
SQL: SELECT "champions" FROM gp2_drivers WHERE "last_current_driver_s_september_22_2013" = 'Gianmarco Raimondo'