user: Question: what is the total number of kickoff [a ] where Week is Week
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Kickoff [a ]', 'Game site', 'TV', 'Attendance', 'Record']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Week', 'Date', 'Opponent', 'Result', 'Kickoff [a ]', 'Game site', 'TV', 'Attendance', 'Record']
SQL:

assistant: SELECT COUNT("Kickoff [a ]") FROM "Table" WHERE "Week" = 'Week';