user: Question: How many entries are there for first driver for Canada?
Columns: ['Country', 'Total Drivers', 'Champions', 'Championships', 'Current September 22, 2013', 'First driver(s)', 'Last/Current driver(s) September 22, 2013']
Types: ['text', 'real', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Argentina', 3.0, '0', '0', 0.0, 'Juan Cruz Álvarez , José María López ( 2005 )', 'Ricardo Risatti ( 2007 )']
SQL:

assistant: SELECT COUNT("First driver(s)") FROM "Table" WHERE "Country" = 'Canada';