user: Question: What year was the Commonwealth Games?
Columns: ['Year', 'Tournament', 'Venue', 'Result', 'Extra']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [2006.0, 'Commonwealth Games', 'Melbourne , Australia', '2nd', '4x400 m relay']
SQL:

assistant: SELECT "Year" FROM "Table" WHERE "Tournament" = 'Commonwealth Games';