CREATE TABLE table_43344 ("Year" FLOAT, "Title" CLOB, "Label" CLOB, "RIAA Sales Certification" CLOB, "Billboard 200 Peak" FLOAT)

What RIAA Sales Certification was awarded to the song that had a Billboard 200 Peak of 21?
SELECT "RIAA Sales Certification" FROM table_43344 WHERE "Billboard 200 Peak" = '21'
SELECT "RIAA Sales Certification" FROM "table_43344" WHERE "Billboard 200 Peak" = '21'