CREATE TABLE table_53634 ("Team" CLOB, "Hosted" FLOAT, "Average" FLOAT, "Highest" FLOAT, "Lowest" FLOAT, "Total" FLOAT, "Last Year" FLOAT, "Up/Down" CLOB)

How many were hosted whene the average attendance was 27,638?
SELECT COUNT("Hosted") FROM table_53634 WHERE "Average" = '27,638'
SELECT COUNT("Hosted") FROM "table_53634" WHERE "Average" = '27,638'