CREATE TABLE table_34144 ("Round" FLOAT, "Pick #" FLOAT, "Overall" FLOAT, "Name" TEXT, "Position" TEXT, "College" TEXT)

What is the mean round number for center position when the pick number is less than 23?
SELECT AVG("Round") FROM table_34144 WHERE "Position" = 'center' AND "Pick #" < '23'
SELECT AVG("Round") FROM "table_34144" WHERE "Pick #" < '23' AND "Position" = 'center'