Age-adjusted suicide rates per 100,000 in each occupation, Japan, 1975–2005a.

aAge-adjusted suicide rates were calculated by the direct method, using the model population of 1985 in Japan as a standard. The model population of 1985 is based on the Japanese population under census of 1985 and it is created on the basis of 1,000 persons as 1 unit, after adjusting radical increase or decrease such as baby boom.bNon-employed includes the unemployed as well as the non-labor force.