CREATE TABLE table_23021 ("Country" TEXT, "Total Drivers" FLOAT, "Champions" FLOAT, "Championships" FLOAT, "Current March 20 ,  2010" FLOAT, "First driver ( s ) " TEXT, "Last/Current driver ( s )  March 20 ,  2010" TEXT)

How many countries have 2 current drivers as of March 20, 2010?
SELECT COUNT("Total Drivers") FROM table_23021 WHERE "Current March 20, 2010" = '2'
SELECT COUNT("Total Drivers") FROM "table_23021" WHERE "Current March 20, 2010" = '2'