CREATE TABLE table_16665 ("Round" FLOAT, "Grand Prix" CLOB, "Date" CLOB, "Location" CLOB, "Pole Position" CLOB, "Fastest Lap" CLOB, "Winning Driver" CLOB, "Winning Constructor" CLOB, "Report" CLOB)

what of the total number of date where grand prix is portuguese grand prix
SELECT COUNT("Date") FROM table_16665 WHERE "Grand Prix" = 'Portuguese Grand Prix'
SELECT COUNT("Date") FROM "table_16665" WHERE "Grand Prix" = 'Portuguese Grand Prix'