表を表示
| 1989 | 20.7億 | 2002 | 4.56億 | 2015 | 6.33億 |
| 1990 | 7.95億 | 2003 | 5.69億 | 2016 | 6.71億 |
| 1991 | 2.32億 | 2004 | 6.21億 | 2017 | 7.2億 |
| 1992 | 2.56億 | 2005 | 6.68億 | 2018 | 9.61億 |
| 1993 | 2.83億 | 2006 | 7.16億 | 2019 | 21.6億 |
| 1994 | 2.42億 | 2007 | 9.9億 | 2020 | 11.2億 |
| 1995 | 3.11億 | 2008 | 11.6億 | 2021 | 12.8億 |
| 1996 | 2.14億 | 2009 | 9.05億 | 2022 | 14.4億 |
| 1997 | 2.44億 | 2010 | 8.33億 | 2023 | 19.9億 |
| 1998 | 3.2億 | 2011 | 7.58億 | 2024 | 21.9億 |
| 1999 | 3.57億 | 2012 | 7.22億 | 2025 | 25.9億 |
| 2000 | 3.51億 | 2013 | 8.12億 | | |
| 2001 | 4.06億 | 2014 | 7.48億 | | |
表を表示
| 1989 | 4.4% | 2002 | 2.8% | 2015 | 1.2% |
| 1990 | 3.8% | 2003 | 2.7% | 2016 | 1.2% |
| 1991 | 3% | 2004 | 2.4% | 2017 | 1.2% |
| 1992 | 3% | 2005 | 2.2% | 2018 | 1.5% |
| 1993 | 2.6% | 2006 | 2.1% | 2019 | 3.2% |
| 1994 | 2.5% | 2007 | 2.2% | 2020 | 1.6% |
| 1995 | 1.6% | 2008 | 2.1% | 2021 | 1.5% |
| 1996 | 1.7% | 2009 | 1.7% | 2022 | 1.6% |
| 1997 | 2.2% | 2010 | 1.6% | 2023 | 1.9% |
| 1998 | 2.1% | 2011 | 1.3% | 2024 | 1.9% |
| 1999 | 2.6% | 2012 | 1.3% | 2025 | 2% |
| 2000 | 2.7% | 2013 | 1.5% | | |
| 2001 | 2.9% | 2014 | 1.3% | | |