表を表示
| 1968 | 27.1万 | 1988 | 469万 | 2008 | 1,558万 |
| 1969 | 33.7万 | 1989 | 633万 | 2009 | 1,532万 |
| 1970 | 41.4万 | 1990 | 918万 | 2010 | 1,487万 |
| 1971 | 47.4万 | 1991 | 1,050万 | 2011 | 1,751万 |
| 1972 | 54.3万 | 1992 | 1,143万 | 2012 | 1,666万 |
| 1973 | 64.3万 | 1993 | 1,078万 | 2013 | 2,320万 |
| 1974 | 78.9万 | 1994 | 1,185万 | 2014 | 1,974万 |
| 1975 | 109万 | 1995 | 1,345万 | 2015 | 1,709万 |
| 1976 | 132万 | 1996 | 1,297万 | 2016 | 2,200万 |
| 1977 | 142万 | 1997 | 980万 | 2017 | 2,268万 |
| 1978 | 175万 | 1998 | 846万 | 2018 | 2,304万 |
| 1979 | 248万 | 1999 | 904万 | 2019 | 2,148万 |
| 1980 | 554万 | 2000 | 936万 | 2020 | 1,843万 |
| 1981 | 533万 | 2001 | 898万 | 2021 | 1,967万 |
| 1982 | 283万 | 2002 | 950万 | 2022 | 1,790万 |
| 1983 | 293万 | 2003 | 1,088万 | 2023 | 2,368万 |
| 1984 | 262万 | 2004 | 1,094万 | 2024 | 1,901万 |
| 1985 | 236万 | 2005 | 1,089万 | 2025 | 2,384万 |
| 1986 | 290万 | 2006 | 1,081万 | | |
| 1987 | 365万 | 2007 | 1,163万 | | |
表を表示
| 1968 | 0.2% | 1988 | 0.2% | 2008 | 0.2% |
| 1969 | 0.2% | 1989 | 0.3% | 2009 | 0.2% |
| 1970 | 0.2% | 1990 | 0.3% | 2010 | 0.1% |
| 1971 | 0.2% | 1991 | 0.4% | 2011 | 0.2% |
| 1972 | 0.2% | 1992 | 0.4% | 2012 | 0.1% |
| 1973 | 0.2% | 1993 | 0.3% | 2013 | 0.2% |
| 1974 | 0.1% | 1994 | 0.3% | 2014 | 0.2% |
| 1975 | 0.2% | 1995 | 0.3% | 2015 | 0.1% |
| 1976 | 0.2% | 1996 | 0.3% | 2016 | 0.2% |
| 1977 | 0.2% | 1997 | 0.2% | 2017 | 0.2% |
| 1978 | 0.2% | 1998 | 0.2% | 2018 | 0.2% |
| 1979 | 0.2% | 1999 | 0.2% | 2019 | 0.1% |
| 1980 | 0.5% | 2000 | 0.2% | 2020 | 0.2% |
| 1981 | 0.5% | 2001 | 0.2% | 2021 | 0.2% |
| 1982 | 0.3% | 2002 | 0.2% | 2022 | 0.1% |
| 1983 | 0.3% | 2003 | 0.2% | 2023 | 0.2% |
| 1984 | 0.3% | 2004 | 0.2% | 2024 | 0.1% |
| 1985 | 0.2% | 2005 | 0.2% | 2025 | 0.1% |
| 1986 | 0.2% | 2006 | 0.2% | | |
| 1987 | 0.2% | 2007 | 0.1% | | |