表を表示
| 1985 | 18.9% | 1999 | 22.5% | 2013 | 20.3% |
| 1986 | 19.5% | 2000 | 19.8% | 2014 | 20.3% |
| 1987 | 20.5% | 2001 | 19% | 2015 | 20.9% |
| 1988 | 20.2% | 2002 | 20% | 2016 | 21.1% |
| 1989 | 19.9% | 2003 | 19.3% | 2017 | 20.9% |
| 1990 | 16.8% | 2004 | 19.9% | 2018 | 22% |
| 1991 | 17.5% | 2005 | 19.3% | 2019 | 21.6% |
| 1992 | 17.6% | 2006 | 19.4% | 2020 | 21.6% |
| 1993 | 21.3% | 2007 | 20.6% | 2021 | 21.3% |
| 1994 | 18.7% | 2008 | 21.6% | 2022 | 21.3% |
| 1995 | 18.9% | 2009 | 21.6% | 2023 | 22.1% |
| 1996 | 18.3% | 2010 | 21.5% | 2024 | 22.6% |
| 1997 | 17.9% | 2011 | 21.5% | 2025 | 22.4% |
| 1998 | 20.8% | 2012 | 20.2% | 2026 | 22.2% |
表を表示
| 1985 | 1.52億 | 1999 | 5.61億 | 2013 | 9.23億 |
| 1986 | 1.83億 | 2000 | 4.92億 | 2014 | 9.68億 |
| 1987 | 2.15億 | 2001 | 4.58億 | 2015 | 10.3億 |
| 1988 | 2.42億 | 2002 | 4.97億 | 2016 | 10.8億 |
| 1989 | 2.74億 | 2003 | 5.25億 | 2017 | 11.3億 |
| 1990 | 2.66億 | 2004 | 5.82億 | 2018 | 12.3億 |
| 1991 | 2.98億 | 2005 | 6.08億 | 2019 | 12.2億 |
| 1992 | 3.22億 | 2006 | 6.72億 | 2020 | 9.34億 |
| 1993 | 3.98億 | 2007 | 7.53億 | 2021 | 11.4億 |
| 1994 | 3.67億 | 2008 | 8.29億 | 2022 | 13.5億 |
| 1995 | 3.92億 | 2009 | 8.27億 | 2023 | 14.6億 |
| 1996 | 3.91億 | 2010 | 8.75億 | 2024 | 15.8億 |
| 1997 | 3.99億 | 2011 | 9.15億 | 2025 | 16.2億 |
| 1998 | 4.98億 | 2012 | 8.79億 | 2026 | 16.8億 |
表を表示
| 1985 | 20.4% | 1999 | 20.9% | 2013 | 24.3% |
| 1986 | 21.1% | 2000 | 20.9% | 2014 | 22.6% |
| 1987 | 19.9% | 2001 | 22% | 2015 | 22.1% |
| 1988 | 18.2% | 2002 | 23% | 2016 | 22.6% |
| 1989 | 19% | 2003 | 22.5% | 2017 | 23% |
| 1990 | 16.5% | 2004 | 22.5% | 2018 | 23.2% |
| 1991 | 18% | 2005 | 25.3% | 2019 | 24.6% |
| 1992 | 18.3% | 2006 | 24.4% | 2020 | 33.1% |
| 1993 | 21.6% | 2007 | 22.2% | 2021 | 26.7% |
| 1994 | 18.7% | 2008 | 22.3% | 2022 | 23.8% |
| 1995 | 19% | 2009 | 24.2% | 2023 | 25.3% |
| 1996 | 18.8% | 2010 | 25.6% | 2024 | 24.4% |
| 1997 | 19% | 2011 | 26.9% | 2025 | 25.2% |
| 1998 | 18.6% | 2012 | 27.1% | 2026 | 25.1% |
表を表示
| 1985 | 1.64億 | 1999 | 5.21億 | 2013 | 11億 |
| 1986 | 1.99億 | 2000 | 5.21億 | 2014 | 10.8億 |
| 1987 | 2.09億 | 2001 | 5.32億 | 2015 | 10.9億 |
| 1988 | 2.18億 | 2002 | 5.72億 | 2016 | 11.6億 |
| 1989 | 2.62億 | 2003 | 6.11億 | 2017 | 12.5億 |
| 1990 | 2.62億 | 2004 | 6.58億 | 2018 | 13億 |
| 1991 | 3.05億 | 2005 | 7.97億 | 2019 | 13.9億 |
| 1992 | 3.34億 | 2006 | 8.46億 | 2020 | 14.3億 |
| 1993 | 4.02億 | 2007 | 8.11億 | 2021 | 14.3億 |
| 1994 | 3.67億 | 2008 | 8.57億 | 2022 | 15.1億 |
| 1995 | 3.95億 | 2009 | 9.28億 | 2023 | 16.6億 |
| 1996 | 4.03億 | 2010 | 10.4億 | 2024 | 17.1億 |
| 1997 | 4.23億 | 2011 | 11.4億 | 2025 | 18.3億 |
| 1998 | 4.45億 | 2012 | 11.8億 | 2026 | 19億 |