CREATE TABLE table_48614 ("Week" FLOAT, "Date" CLOB, "Opponent" CLOB, "Result" CLOB, "Attendance" CLOB)

In what Week was the Attendance 39,923?
SELECT SUM("Week") FROM table_48614 WHERE "Attendance" = '39,923'
SELECT SUM("Week") FROM "table_48614" WHERE "Attendance" = '39,923'