I don't think sales should be compared by year. Like 2006 u have her (miss)understood album n 1st week of secret album which is half of the secret sales.. Maybe it should be on a single-single, album-album basis. Like Guilty and 2007 asia tour, it's lagging compared to secret n miss(understood) tour. But for MW, it's an improvement compared to glitter/fated n t2m