CREATE TABLE table_203_512 (id DECIMAL, "release date" TEXT, "album" TEXT, "catalog number" TEXT, "chart position" DECIMAL, "notes" TEXT)

what is the number of times that pulse had been released ?
SELECT COUNT("release date") FROM table_203_512 WHERE "album" = 'pulse'
SELECT COUNT("release date") FROM "table_203_512" WHERE "album" = 'pulse'