CREATE TABLE table_204_902 (id DECIMAL, "rank" DECIMAL, "name" TEXT, "nationality" TEXT, "time" TEXT, "notes" TEXT)

how long was the jamaica time for rank 1 ?
SELECT "time" FROM table_204_902 WHERE "nationality" = 'jamaica' AND "rank" = 1
SELECT "time" FROM "table_204_902" WHERE "nationality" = 'jamaica' AND "rank" = 1