"The nation's food self-sufficiency rate fell 1 percentage point from a year earlier to 40 percent on a calorie basis in fiscal 2009, the first decline in three years, the farm ministry said Tuesday."
Source:Japan's food self-sufficiency rate drops to 40%
THE ASAHI SHIMBUN
2010/08/12
http://www.asahi.com/english/TKY201008110250.html