user: Question: How many podiums when he was in the British F3 National Class series?
Columns: ['Season', 'Series', 'Team', 'Races', 'Wins', 'Poles', 'F/Laps', 'Podiums', 'Points', 'Position']
Types: ['real', 'text', 'text', 'real', 'real', 'real', 'real', 'real', 'real', 'text']
Sample row: [2007.0, 'British F3 National Class', 'Räikkönen Robertson Racing', 9.0, 0.0, 0.0, 0.0, 0.0, 33.0, '11th']
SQL:

assistant: SELECT "Podiums" FROM "Table" WHERE "Series" = 'British F3 National Class';