CREATE TABLE table_69444 ("Week" FLOAT, "Date" CLOB, "Opponent" CLOB, "Result" CLOB, "Attendance" FLOAT)

Which sum of week that had an attendance larger than 55,767 on September 28, 1986?
SELECT SUM("Week") FROM table_69444 WHERE "Attendance" > '55,767' AND "Date" = 'september 28, 1986'
SELECT SUM("Week") FROM "table_69444" WHERE "Attendance" > '55,767' AND "Date" = 'september 28, 1986'