user: Question: what is the total levels in 2007?
Columns: ['Season', 'Team', 'Country', 'League', 'Level', 'Apps', 'Goals']
Types: ['real', 'text', 'text', 'text', 'real', 'real', 'real']
Sample row: [2006.0, 'Irtysh', 'Kazakhstan', 'Premier League', 1.0, 27.0, 2.0]
SQL:

assistant: SELECT SUM("Level") FROM "Table" WHERE "Season" = 2007.0;