CREATE TABLE table_204_975 (id DECIMAL, "year" DECIMAL, "competition" TEXT, "location" TEXT, "event" TEXT, "final-rank" TEXT, "final-score" DECIMAL, "qualifying rank" DECIMAL, "qualifying score" DECIMAL)

what is he number of events held in philadelphia ?
SELECT COUNT("competition") FROM table_204_975 WHERE "location" = 'philadelphia'
SELECT COUNT("competition") FROM "table_204_975" WHERE "location" = 'philadelphia'