CREATE TABLE table_204_13 (id NUMBER, "finished" CLOB, "post" NUMBER, "horse" CLOB, "jockey" CLOB, "trainer" CLOB, "owner" CLOB, "time / behind" CLOB)

what is the total number of jockeys listed here ?
SELECT COUNT("jockey") FROM table_204_13
SELECT COUNT("jockey") FROM "table_204_13"