user: ### NOW ANSWER:
Question: Which week had an attendance of 55,158?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'TV Time', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'August 31, 1997', 'at Baltimore Ravens', 'W 28–27', 'NBC 4:15pm', '61,018']
SQL:

assistant: SELECT SUM("Week") FROM "Table" WHERE "Attendance" = '55,158';