15.Niigata.ken, Life expectancy at birth (period, 1x5c) Last modified:2022-09-01, ver.004_002 JMD(IPSS) Year Female Male Total 1975-1977 77.22 71.65 74.50 1978-1982 78.82 73.31 76.15 1983-1987 80.84 74.86 77.96 1988-1992 82.27 76.30 79.41 1993-1997 83.59 76.96 80.39 1998-2002 85.08 77.70 81.48 2003-2007 86.04 78.70 82.45 2008-2012 86.86 79.66 83.32 2013-2017 87.17 80.63 83.96 2018-2020 87.50 81.19 84.38