데이터 표
| 1970 | 6,874만 | 1990 | 89.6억 | 2008 | 44.3억 |
| 1971 | 7,343만 | 1991 | 129억 | 2009 | 42.1억 |
| 1972 | 9,074만 | 1992 | 63.2억 | 2010 | 43.4억 |
| 1973 | 1.37억 | 1993 | 29.8억 | 2011 | 53.9억 |
| 1974 | 3.85억 | 1994 | 33억 | 2012 | 59.4억 |
| 1977 | 7.49억 | 1995 | 36.9억 | 2013 | 57억 |
| 1978 | 7.38억 | 1996 | 32.4억 | 2014 | 58.3억 |
| 1979 | 8.81억 | 1997 | 24.5억 | 2015 | 57.4억 |
| 1980 | 9.51억 | 1998 | 22.8억 | 2016 | 64.5억 |
| 1981 | 10.4억 | 1999 | 22.9억 | 2017 | 67.6억 |
| 1982 | 12.9억 | 2000 | 27억 | 2018 | 71.7억 |
| 1983 | 14.3억 | 2001 | 26.9억 | 2019 | 73.7억 |
| 1984 | 14.7억 | 2002 | 28.2억 | 2020 | 69.4억 |
| 1985 | 13.8억 | 2003 | 31.3억 | 2021 | 90.2억 |
| 1986 | 13억 | 2004 | 34.5억 | 2022 | 82.4억 |
| 1987 | 13.4억 | 2005 | 35.1억 | 2023 | 77.6억 |
| 1988 | 17억 | 2006 | 36억 | 2024 | 78억 |
| 1989 | 20.8억 | 2007 | 41.2억 | 2025 | 80.9억 |
데이터 표
| 1970 | 2.4% | 1990 | 48.5% | 2008 | 3% |
| 1971 | 1.9% | 1991 | 117.3% | 2009 | 4% |
| 1972 | 2% | 1992 | 31.8% | 2010 | 3.8% |
| 1973 | 2.5% | 1993 | 12.4% | 2011 | 3.5% |
| 1974 | 3% | 1994 | 13.3% | 2012 | 3.4% |
| 1977 | 5.3% | 1995 | 13.6% | 2013 | 3.3% |
| 1978 | 4.8% | 1996 | 10.3% | 2014 | 3.6% |
| 1979 | 3.5% | 1997 | 8.1% | 2015 | 5% |
| 1980 | 3.3% | 1998 | 8.8% | 2016 | 5.9% |
| 1981 | 4.1% | 1999 | 7.6% | 2017 | 5.6% |
| 1982 | 6% | 2000 | 7.2% | 2018 | 5.2% |
| 1983 | 6.8% | 2001 | 7.7% | 2019 | 5.2% |
| 1984 | 6.8% | 2002 | 7.4% | 2020 | 6.3% |
| 1985 | 6.4% | 2003 | 6.5% | 2021 | 6.1% |
| 1986 | 7.2% | 2004 | 5.8% | 2022 | 4.5% |
| 1987 | 6% | 2005 | 4.3% | 2023 | 4.3% |
| 1988 | 8.2% | 2006 | 3.5% | 2024 | 4.4% |
| 1989 | 8.5% | 2007 | 3.6% | 2025 | 4.7% |