CREATE TABLE table_43545 ("Week" FLOAT, "Date" CLOB, "Opponent" CLOB, "Result" CLOB, "Attendance" FLOAT)

In which week was the attendance 47,218?
SELECT SUM("Week") FROM table_43545 WHERE "Attendance" = '47,218'
SELECT SUM("Week") FROM "table_43545" WHERE "Attendance" = '47,218'