If we're going by Mediatraffic's claim that '21''s total sales are 26,320,000, the 2013 end-of-year total for '21' on the site was 26,156,000 (see page 12; the second last post), which means that '21' has sold at least 164,000 copies worldwide this year!
If we're going by Mediatraffic's claim that '21''s total sales are 26,320,000, the 2013 end-of-year total for '21' on the site was 26,156,000 (see page 12; the second last post), which means that '21' has sold at least 164,000 copies worldwide this year!
