How Many Kids Does Japanese Couple Have?
The following shows the number of children which Japanese married couples (have been married for more than 15 years) have. The average number of children is decreasing recently.
56.2 % couples have two kids.
| Year, survey conducted | Number of samples | None | One | Two | Three | Four or more |
| 1977 | 1,427 | 3.0 | 11.0 | 57.0 | 23.8 | 5.1 |
| 1982 | 1,429 | 3.1 | 9.1 | 55.4 | 27.4 | 5.0 |
| 1987 | 1,755 | 2.7 | 9.6 | 57.8 | 25.9 | 3.9 |
| 1992 | 1,849 | 3.1 | 9.3 | 56.4 | 26.5 | 4.8 |
| 1997 | 1,334 | 3.7 | 9.8 | 53.6 | 27.9 | 5.0 |
| 2002 | 1,257 | 3.4 | 8.9 | 53.2 | 30.2 | 4.2 |
| 2005 | 1,078 | 5.6 | 11.7 | 56.0 | 22.4 | 4.3 |
| 2010 | 1,385 | 6.4 | 15.9 | 56.2 | 19.4 | 2.2 |
Source is National Institute of Population and Social Security Research. Title 第 14 回出生動向基本調査 表２-２ 調査別にみた、出生子ども数分布の推移(結婚持続期間 15～19 年)
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