CREATE TABLE table_13018 ("Player" TEXT, "Height" FLOAT, "Position" TEXT, "Year born  ( Age ) " TEXT, "Current Club" TEXT)

Count the average Height which has a Position of pf, and a Year born (Age) on april 1, 1981 (age32)?
SELECT AVG("Height") FROM table_13018 WHERE "Position" = 'pf' AND "Year born (Age)" = 'april 1, 1981 (age32)'
SELECT AVG("Height") FROM "table_13018" WHERE "Position" = 'pf' AND "Year born (Age)" = 'april 1, 1981 (age32)'