CREATE TABLE table_203_782 (id DECIMAL, "year" DECIMAL, "actor" TEXT, "award" TEXT, "category" TEXT, "role" TEXT, "episode" TEXT, "result" TEXT)

what is the last year in which kelsey grammer won an award for outstanding voice performance for a role on the simpsons ?
SELECT MAX("year") FROM table_203_782 WHERE "actor" = 'kelsey grammer' AND "category" = 'outstanding voice-over performance'
SELECT MAX("year") FROM "table_203_782" WHERE "actor" = 'kelsey grammer' AND "category" = 'outstanding voice-over performance'