CREATE TABLE table_203_439 (id DECIMAL, "pos." DECIMAL, "rider" TEXT, "semi-final points" DECIMAL, "final points" DECIMAL, "final heats" TEXT, "total points" DECIMAL)

how many total points did eric langton score ?
SELECT "total points" FROM table_203_439 WHERE "rider" = 'eric langton'
SELECT "total points" FROM "table_203_439" WHERE "rider" = 'eric langton'