CREATE TABLE table_202_54 (id DECIMAL, "song" TEXT, "chinese" TEXT, "hito radio\ top 10" DECIMAL, "9+2 music\ top 15" DECIMAL, "global asia\ top 15" DECIMAL, "ufo radio\ top 15" DECIMAL, "channel [v]\ top 20" DECIMAL, "mtv taiwan\ top 20" DECIMAL, "yes 93.3\ top 20" DECIMAL)

how many songs were on the mtv taiwan top 20 chart ?
SELECT COUNT("song") FROM table_202_54 WHERE NOT "mtv taiwan\ntop 20" IS NULL
SELECT COUNT("song") FROM "table_202_54" WHERE NOT "mtv taiwan\ntop 20" IS NULL