CREATE TABLE table_203_429 (id DECIMAL, "year" DECIMAL, "competition" TEXT, "venue" TEXT, "position" TEXT, "notes" TEXT)

how what listed year was a distance of only 53.30 m reached ?
SELECT "year" FROM table_203_429 WHERE "notes" = 53.3
SELECT "year" FROM "table_203_429" WHERE "notes" = 53.3