CREATE TABLE table_name_91 (attendance INT, date VARCHAR, week VARCHAR)

What was the Attendance on December 21, 1986 before Week 16?
SELECT SUM(attendance) FROM table_name_91 WHERE date = "december 21, 1986" AND week < 16
SELECT SUM("attendance") FROM "table_name_91" WHERE "date" = "december 21, 1986" AND "week" < 16