CREATE TABLE table_71816 ("Date" CLOB, "Opponent" CLOB, "Score" CLOB, "Loss" CLOB, "Attendance" FLOAT, "Record" CLOB)

What was the average attendance when the New York Mets were opponents with a record of 51-33?
SELECT AVG("Attendance") FROM table_71816 WHERE "Opponent" = 'new york mets' AND "Record" = '51-33'
SELECT AVG("Attendance") FROM "table_71816" WHERE "Opponent" = 'new york mets' AND "Record" = '51-33'