CREATE TABLE table_57183 ("Round" FLOAT, "Pick" FLOAT, "Player" TEXT, "Pos." TEXT, "Nationality" TEXT, "Team" TEXT, "School/club team" TEXT)

How many rounds have School/club team of pan american?
SELECT SUM("Round") FROM table_57183 WHERE "School/club team" = 'pan american'
SELECT SUM("Round") FROM "table_57183" WHERE "School/club team" = 'pan american'