user: Question: What sum of game has an attendance of 18690?
Columns: ['Game', 'Date', 'Opponent', 'Score', 'Location', 'Attendance', 'Record', 'Points']
Types: ['real', 'text', 'text', 'text', 'text', 'real', 'text', 'real']
Sample row: [48.0, 'February 1', 'Washington Capitals', '7–4(L)', 'Washington', 18277.0, '17–24–7', 41.0]
SQL:

assistant: SELECT SUM("Game") FROM "Table" WHERE "Attendance" = 18690.0;