Table 1

Summary statistics of the number of suicides in 2009–2017, as well as population and area-specific socioeconomic characteristics from the 2010 census, across 1887 municipalities in Japan

MeanSDMinimum25%Median75%Maximum
Number of suicides in 2009–2017126.1176.805604681440
Population size67 862.999 233.4201984230 53482 866877 138
Single-person households (%)27.08.98.820.825.831.273.5
Unmarried adult population (%)39.43.328.537.339.040.856.5
Population mobility (%)18.25.85.413.717.922.049.1
Unemployment rate (%)6.32.105.16.27.322.7
Non-owner-occupied households (%)26.213.42.316.024.634.484.3
Percentage (%) of population with less than a college degree85.46.853.882.186.790.397.5
Population density (people/km2)1516.93138.61.669.8248.21107.221 898.3