CREATE TABLE table_37912 ("Date" CLOB, "Opponent" CLOB, "Score" CLOB, "Loss" CLOB, "Attendance" FLOAT, "Record" CLOB)

Loss of de la rosa (8 8) has what average attendance?
SELECT AVG("Attendance") FROM table_37912 WHERE "Loss" = 'de la rosa (8–8)'
SELECT AVG("Attendance") FROM "table_37912" WHERE "Loss" = 'de la rosa (8–8)'