表2−8 将来推計人口の年齢構造に関する指標:2000〜2050年 | |||||||||||
年次 | 人口割合 (%) | 平均年齢 | 中位数年齢 | 従属人口指数 (%) | 老年化指数 | ||||||
0〜14歳 | 15〜64歳 | 65歳以上 | (歳) | (歳) | 総 数 | 年少人口 | 老年人口 | (%) | |||
2000 | 14.6 | 68.1 | 17.4 | 41.4 | 41.5 | 46.9 | 21.4 | 25.5 | 119.1 | ||
2001 | 14.4 | 67.6 | 18.0 | 41.8 | 41.8 | 47.8 | 21.3 | 26.6 | 124.8 | ||
2002 | 14.2 | 67.3 | 18.5 | 42.1 | 42.1 | 48.7 | 21.2 | 27.5 | 130.1 | ||
2003 | 14.1 | 66.9 | 19.0 | 42.5 | 42.4 | 49.4 | 21.0 | 28.4 | 134.8 | ||
2004 | 14.0 | 66.7 | 19.4 | 42.8 | 42.6 | 50.0 | 21.0 | 29.1 | 138.6 | ||
2005 | 13.9 | 66.2 | 19.9 | 43.1 | 42.9 | 51.0 | 21.0 | 30.0 | 143.2 | ||
2006 | 13.8 | 65.7 | 20.5 | 43.4 | 43.2 | 52.2 | 21.0 | 31.2 | 148.5 | ||
2007 | 13.7 | 65.2 | 21.1 | 43.7 | 43.5 | 53.4 | 21.0 | 32.4 | 154.0 | ||
2008 | 13.6 | 64.7 | 21.7 | 44.0 | 43.8 | 54.5 | 21.0 | 33.5 | 159.1 | ||
2009 | 13.5 | 64.3 | 22.2 | 44.3 | 44.2 | 55.6 | 21.0 | 34.6 | 164.6 | ||
2010 | 13.4 | 64.1 | 22.5 | 44.6 | 44.4 | 56.1 | 20.9 | 35.2 | 168.3 | ||
2015 | 12.8 | 61.2 | 26.0 | 46.0 | 46.1 | 63.4 | 21.0 | 42.4 | 202.3 | ||
2020 | 12.2 | 60.0 | 27.8 | 47.2 | 48.0 | 66.7 | 20.3 | 46.4 | 228.9 | ||
2025 | 11.6 | 59.7 | 28.7 | 48.3 | 49.8 | 67.5 | 19.5 | 48.0 | 246.5 | ||
2030 | 11.3 | 59.2 | 29.6 | 49.2 | 51.2 | 69.0 | 19.0 | 50.0 | 262.7 | ||
2035 | 11.1 | 58.0 | 30.9 | 49.9 | 52.2 | 72.4 | 19.1 | 53.3 | 279.7 | ||
2040 | 11.0 | 55.8 | 33.2 | 50.4 | 52.9 | 79.3 | 19.7 | 59.6 | 302.3 | ||
2045 | 10.9 | 54.4 | 34.7 | 50.9 | 53.1 | 83.8 | 20.1 | 63.7 | 317.7 | ||
2050 | 10.8 | 53.6 | 35.7 | 51.3 | 53.4 | 86.7 | 20.1 | 66.5 | 330.8 | ||
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