user: Question: How many average wins have USA as the team?
Columns: ['Pos.', 'Team', 'Wins', 'Ties', 'Losses', 'Goals', 'Diff.', 'Points']
Types: ['real', 'text', 'real', 'real', 'real', 'text', 'text', 'text']
Sample row: [1.0, 'Great Britain', 3.0, 1.0, 0.0, '15: 2', '+13', '7:1']
SQL:

assistant: SELECT AVG("Wins") FROM "Table" WHERE "Team" = 'USA';