Japanese Wii sales surpassed eight million units as of April 19, according to Famitsu publisher Enterbrain.

The console has been on sale in the country since December 2, 2006.

A Kotaku translation of the article also shows that Wii Sports, which wasn’t bundled with the system at launch in Japan, is the system’s top-selling title to date.

The top five games, which are all Nintendo published, are listed below with launch dates and sales totals in brackets.

1. Wii Sports (12/2/06 - 3,481,469)
2. Wii Fit (12/1/07 - 3,301,373)
3. Wii Play (12/2/06 - 2,672,811)
4. Mario Kart Wii (4/10/08 - 2,218,756)
5. Super Smash Bros. Brawl (1/31/08 - 1,789,924)