CREATE TABLE table_204_492 (id DECIMAL, "year" DECIMAL, "competition" TEXT, "venue" TEXT, "position" TEXT, "notes" TEXT)

what year did it only take place in sherbrooke , canada ?
SELECT "year" FROM table_204_492 WHERE "venue" = 'sherbrooke, canada'
SELECT "year" FROM "table_204_492" WHERE "venue" = 'sherbrooke, canada'