The data display the average number of members per private household in Japan from 1970 to 2015. They also show a downward trend in the average number of members per household. Mainly due to an increase in nuclear families and one-person households, the average size of households dropped to 2.33 members in 2015.
1970 | 3.41 |
1975 | 3.28 |
1980 | 3.22 |
1985 | 3.14 |
1990 | 2.99 |
1995 | 2.82 |
2000 | 2.67 |
2005 | 2.55 |
2010 | 2.42 |
2015 | 2.33 |