The data covers December 29, 2008 through June 7, 2009 by  Hachimaki.

As you can see here  http://www.vgchartz.com/forum/thread.php?id=79092  , the first half of 2009 saw the games market fall 24% over the same period the year prior. One notable change from last year was the drop in million sellers. The first half of last year had four million sellers. This year number one seller Mario & Luigi RPG 3!!! did not come closer to one million.

Hachimaki points out something else that's notable about the chart. Nintendo has seven games in the chart. However, all but Mario & Luigi RPG 3!!! came out last year or, in Wii Fit's case, in 2007.

• 1. Mario & Luigi RPG 3!!! (Nintendo, DS): 631,165
• 2. Monster Hunter Portable 2nd G PSP the Best (Capcom, PSP): 556,650
• 3. Yakuza 3 (Sega, PS3): 485,630
• 4. Resident Evil 5 (Capcom, PS3): 467,819
• 5. Wii Fit (Nintendo, Wii): 432,191
• 6. Kingdom Hearts 358/2 Days (Square Enix, DS): 385,799
• 7. Rhythm Heaven Gold (Nintendo, DS): 384,191
• 8. Dynasty Warriors Strike Force (Koei, PSP): 382,191
• 9. Pokemon Mystery Dungeon Explorers of Sky (Pokemon, DS): 338,568
• 10. Tales of the World Radiant Mythology 2 (Namco Bandai, PSP): 316,797
• 11. Taiko Drum Master Wii (Namco Bandai, Wii): 313,668
• 12. Wagamama Fashion Girls Mode (Nintendo, DS): 285,944
• 13. Animal Crossing: City Folk (Nintendo, Wii): 256,057
• 14. Mario Kart Wii (Nintendo, Wii): 254,631
• 15. Kirby: Ultra Super Deluxe (Nintendo, DS): 250,437

Nintendo is still selling lots of Animal Crossing over there? Dang.

Monster Hunter is loved over there.

Great showing for Sony this year, really pushed some good titles. I hope to see Yakuza 3 in America eventually, should push 800k.