Table:
text: List of GP2 Asia Series drivers
By nationality
By nationality
Country Total_Drivers Champions Championships Current_March_20_2010 First_drivers Last_Current_drivers_March_20_2010
New Zealand 2 0 0 0 Earl Bamber , Chris van der Drift ( 2008–09 ) Earl Bamber , Chris van der Drift ( 2008–09 )
Norway 1 0 0 1 Pål Varhaug ( 2011 ) Pål Varhaug
Pakistan 1 0 0 0 Adam Khan ( 2008 ) Adam Khan ( 2008 )
Portugal 2 0 0 0 Álvaro Parente , Ricardo Teixeira ( 2008–09 ) Álvaro Parente ( 2009–10 )
Romania 1 0 0 1 Michael Herck ( 2008 ) Michael Herck
Russia 2 0 0 1 Vitaly Petrov ( 2008 ) Mikhail Aleshin
Serbia 1 0 0 0 Miloš Pavlović ( 2008 ) Miloš Pavlović ( 2008 )
South Africa 1 0 0 0 Adrian Zaugg ( 2009-10 ) Adrian Zaugg ( 2009-10 )

Question: How many championships does Pakistan have among GP2 Asia Series drivers by nationality?