CREATE TABLE table_16760 ("Race Name" CLOB, "Circuit" CLOB, "Date" CLOB, "Winning driver" CLOB, "Constructor" CLOB, "Report" CLOB)

What is the total amount of circuts dated 22 april?
SELECT COUNT("Circuit") FROM table_16760 WHERE "Date" = '22 April'
SELECT COUNT("Circuit") FROM "table_16760" WHERE "Date" = '22 April'