user: Question: Which sum of Seasons in league has a Best Position of 5th (2007)?
Columns: ['Pos. in 2007', 'Club', 'City', 'Best Position', 'Seasons in league']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['1', 'Aktobe', 'Aktobe', 'Champions, twice (2005, 2007)', 14.0]
SQL:

assistant: SELECT SUM("Seasons in league") FROM "Table" WHERE "Best Position" = '5th (2007)';