데이터 표
| 1974 | 6.98억 | 1992 | 18.9억 | 2010 | 46.6억 |
| 1975 | 10.6억 | 1993 | 19.3억 | 2011 | 58.4억 |
| 1976 | 12.8억 | 1994 | 22.4억 | 2012 | 65.3억 |
| 1977 | 14.7억 | 1995 | 24.8억 | 2013 | 83.8억 |
| 1978 | 16.3억 | 1996 | 28.7억 | 2014 | 69.3억 |
| 1979 | 15.5억 | 1997 | 32.3억 | 2015 | 76억 |
| 1980 | 21.1억 | 1998 | 9.73억 | 2016 | 73.8억 |
| 1981 | 26.5억 | 1999 | 11.4억 | 2017 | 87.9억 |
| 1982 | 27.4억 | 2000 | 11.3억 | 2018 | 74.9억 |
| 1983 | 20.5억 | 2001 | 9.19억 | 2019 | 81.5억 |
| 1984 | 20억 | 2002 | 13.7억 | 2020 | 93.9억 |
| 1985 | 19.2억 | 2003 | 21.3억 | 2021 | 88억 |
| 1986 | 17.3억 | 2004 | 24.3억 | 2022 | 101억 |
| 1987 | 13.5억 | 2005 | 21.5억 | 2023 | 113억 |
| 1988 | 13.6억 | 2006 | 26.1억 | 2024 | 120억 |
| 1989 | 14.1억 | 2007 | 33.5억 | 2025 | 150억 |
| 1990 | 16.1억 | 2008 | 32.3억 | | |
| 1991 | 17억 | 2009 | 33억 | | |
데이터 표
| 1974 | 2.7% | 1992 | 1.4% | 2010 | 0.6% |
| 1975 | 3.5% | 1993 | 1.2% | 2011 | 0.7% |
| 1976 | 3.4% | 1994 | 1.3% | 2012 | 0.7% |
| 1977 | 3.2% | 1995 | 1.2% | 2013 | 0.9% |
| 1978 | 3.2% | 1996 | 1.3% | 2014 | 0.8% |
| 1979 | 3% | 1997 | 1.5% | 2015 | 0.9% |
| 1980 | 2.9% | 1998 | 1% | 2016 | 0.8% |
| 1981 | 2.9% | 1999 | 0.8% | 2017 | 0.9% |
| 1982 | 2.9% | 2000 | 0.7% | 2018 | 0.7% |
| 1983 | 2.4% | 2001 | 0.6% | 2019 | 0.7% |
| 1984 | 2.3% | 2002 | 0.7% | 2020 | 0.9% |
| 1985 | 2.2% | 2003 | 0.9% | 2021 | 0.7% |
| 1986 | 2% | 2004 | 0.9% | 2022 | 0.8% |
| 1987 | 1.7% | 2005 | 0.8% | 2023 | 0.8% |
| 1988 | 1.5% | 2006 | 0.7% | 2024 | 0.9% |
| 1989 | 1.4% | 2007 | 0.7% | 2025 | 1% |
| 1990 | 1.4% | 2008 | 0.6% | | |
| 1991 | 1.3% | 2009 | 0.6% | | |