Now that I think about it, Mitkki's figures are probably correct, for the most part. Fly high, I'm not so sure about. I'm quite certain that only 300,000 copies were issued. Anyway, I'm going to show for those that are possible, what each of those releases would have had to sell each week on average to get from HCE's numbers to Mitkki's posted ones, minus fly high, for obvious reasons. Some will need more explanation though... well you see them.
SINGLES
Vogue: 93
Far away: 368
SEASONS: 663
SURREAL: 439
M: 1,418
Evolution: 739
NEVER EVER: 267
Endless Sorrow: 385
UNITE!: 545
Dearest: 736
ALBUMS
Duty: HCE’s figures are higher
A BEST: HCE’s figures are higher
I am…: 1,045
Ayu-ro mix: 323
Ayumix II US+EU: 206
Ayumix II Non Stop Megamix: HCE’s figures are actually higher…
Ayumix III Non Stop Megamix: 176
Ayu-ro mix 2: 905
Ayu trance: 568
Ayumix 4 Non Stop Megamix: 468
I just realised how flawed my mathematics were... >.<... so some of the numbers are actually a lot higher than this.. lol.. but still.. >.<