表を表示
| 1980 | 20.5% | 1996 | 23.5% | 2012 | 34% |
| 1981 | 18.6% | 1997 | 18.1% | 2013 | 45.4% |
| 1982 | 18.5% | 1998 | 17.3% | 2014 | 42% |
| 1983 | 16.3% | 1999 | 15.5% | 2015 | 42.3% |
| 1984 | 17.5% | 2000 | 13.3% | 2016 | 36% |
| 1985 | 18.1% | 2001 | 13.3% | 2017 | 38.1% |
| 1986 | 18.7% | 2002 | 10.4% | 2018 | 36.3% |
| 1987 | 20.2% | 2003 | 21.5% | 2019 | 34.1% |
| 1988 | 21.6% | 2004 | 26.9% | 2020 | 37.9% |
| 1989 | 24.3% | 2005 | 26.2% | 2021 | 35.1% |
| 1990 | 25.8% | 2006 | 28.7% | 2022 | 40.8% |
| 1991 | 33.4% | 2007 | 34.8% | 2023 | 40.1% |
| 1992 | 33.1% | 2008 | 26% | 2024 | 37.5% |
| 1993 | 30.1% | 2009 | 24.8% | 2025 | 37.4% |
| 1994 | 29.1% | 2010 | 28.2% | 2026 | 37.4% |
| 1995 | 23.5% | 2011 | 32.8% | | |
表を表示
| 1980 | 3,700万 | 1996 | 5.08億 | 2012 | 29.6億 |
| 1981 | 3,700万 | 1997 | 4.2億 | 2013 | 42.6億 |
| 1982 | 4,100万 | 1998 | 4.53億 | 2014 | 41.3億 |
| 1983 | 4,000万 | 1999 | 4.33億 | 2015 | 43.8億 |
| 1984 | 4,800万 | 2000 | 3.36億 | 2016 | 39.5億 |
| 1985 | 5,300万 | 2001 | 3.4億 | 2017 | 44.2億 |
| 1986 | 5,700万 | 2002 | 2.88億 | 2018 | 46.6億 |
| 1987 | 7,400万 | 2003 | 6.73億 | 2019 | 45.1億 |
| 1988 | 9,400万 | 2004 | 9.43億 | 2020 | 47.9億 |
| 1989 | 1.14億 | 2005 | 10.9億 | 2021 | 43.9億 |
| 1990 | 1.66億 | 2006 | 13.5億 | 2022 | 48.8億 |
| 1991 | 2.44億 | 2007 | 18.5億 | 2023 | 50.5億 |
| 1992 | 3.09億 | 2008 | 15.7億 | 2024 | 50.2億 |
| 1993 | 3.42億 | 2009 | 16.1億 | 2025 | 53億 |
| 1994 | 4.58億 | 2010 | 20.5億 | 2026 | 57.1億 |
| 1995 | 4.46億 | 2011 | 26.7億 | | |
表を表示
| 1980 | 17.6% | 1996 | 20.4% | 2012 | 29.4% |
| 1981 | 19.5% | 1997 | 16.3% | 2013 | 41.8% |
| 1982 | 17.9% | 1998 | 13.1% | 2014 | 39.8% |
| 1983 | 17% | 1999 | 15.8% | 2015 | 41.5% |
| 1984 | 23.3% | 2000 | 15.8% | 2016 | 39.6% |
| 1985 | 25.6% | 2001 | 15.3% | 2017 | 40.4% |
| 1986 | 28% | 2002 | 14.1% | 2018 | 34.8% |
| 1987 | 42% | 2003 | 12.6% | 2019 | 35.6% |
| 1988 | 35.7% | 2004 | 12.5% | 2020 | 40.4% |
| 1989 | 37.2% | 2005 | 14.7% | 2021 | 36.9% |
| 1990 | 25.4% | 2006 | 17.4% | 2022 | 43.5% |
| 1991 | 33.2% | 2007 | 21.1% | 2023 | 44.2% |
| 1992 | 29.6% | 2008 | 24.3% | 2024 | 39.6% |
| 1993 | 28.1% | 2009 | 22.7% | 2025 | 40.6% |
| 1994 | 25.5% | 2010 | 22.6% | 2026 | 40.8% |
| 1995 | 20.8% | 2011 | 26.7% | | |
表を表示
| 1980 | 3,200万 | 1996 | 4.4億 | 2012 | 25.6億 |
| 1981 | 3,900万 | 1997 | 3.78億 | 2013 | 39.2億 |
| 1982 | 4,000万 | 1998 | 3.42億 | 2014 | 39.2億 |
| 1983 | 4,200万 | 1999 | 4.41億 | 2015 | 42.9億 |
| 1984 | 6,400万 | 2000 | 3.99億 | 2016 | 43.4億 |
| 1985 | 7,400万 | 2001 | 3.92億 | 2017 | 46.8億 |
| 1986 | 8,500万 | 2002 | 3.89億 | 2018 | 44.7億 |
| 1987 | 1.55億 | 2003 | 3.94億 | 2019 | 47.1億 |
| 1988 | 1.56億 | 2004 | 4.36億 | 2020 | 51億 |
| 1989 | 1.75億 | 2005 | 6.11億 | 2021 | 46.2億 |
| 1990 | 1.63億 | 2006 | 8.16億 | 2022 | 52.1億 |
| 1991 | 2.43億 | 2007 | 11.2億 | 2023 | 55.7億 |
| 1992 | 2.77億 | 2008 | 14.6億 | 2024 | 53億 |
| 1993 | 3.19億 | 2009 | 14.7億 | 2025 | 57.6億 |
| 1994 | 4億 | 2010 | 16.4億 | 2026 | 62.3億 |
| 1995 | 3.95億 | 2011 | 21.7億 | | |