CREATE TABLE table_45744 ("Player" TEXT, "Nationality" TEXT, "Jersey Number ( s ) " FLOAT, "Position" TEXT, "Years" TEXT, "From" TEXT)

What is the Jersey Number of the Player from Clemson?
SELECT SUM("Jersey Number(s)") FROM table_45744 WHERE "From" = 'clemson'
SELECT SUM("Jersey Number(s)") FROM "table_45744" WHERE "From" = 'clemson'