"Sales totaled ¥1.09 trillion at 8,150 outlets operated by 70 companies, the Japan Chain Stores Association"
Source:Supermarket sales fell 4.8% in July
Kyodo News, 25th August 2009
http://search.japantimes.co.jp/cgi-bin/nb20090825a6.html
Further reading:
Be one of the first to explore Japan by motorcycle
Motorcycle Japan in 2010