CREATE TABLE table_31129 ("#" FLOAT, "Name" TEXT, "Position" TEXT, "Height" TEXT, "Weight" FLOAT, "Year" TEXT, "Former school" TEXT, "Hometown" TEXT)

What year is the player whose number is 31?
SELECT "Year" FROM table_31129 WHERE "#" = '31'
SELECT "Year" FROM "table_31129" WHERE "#" = '31'