Japan can be a tough place to live these days and nothing shows this more that the 30,000+ suicides annually at a rate of 24.1 per 100,000. I had a squizz had the WHO site and the highest rate for Japan was 25.1 in 1955. The rate maps showed Japan, Australa, the former Soviet blok and a number of European nations have rates in excess of 13 suicides per 100,000. You can check out the WHO suicide prevention section if this is your thing.
