데이터 표
| 1988 | 71.1억 | 2001 | 79.8억 | 2014 | 98억 |
| 1989 | 81.4억 | 2002 | 75.3억 | 2015 | 98억 |
| 1990 | 87억 | 2003 | 74.7억 | 2016 | 96.6억 |
| 1991 | 93억 | 2004 | 78.3억 | 2017 | 105억 |
| 1992 | 101억 | 2005 | 80.1억 | 2018 | 105억 |
| 1993 | 117억 | 2006 | 76.5억 | 2019 | 110억 |
| 1994 | 120억 | 2007 | 81.6억 | 2020 | 120억 |
| 1995 | 115억 | 2008 | 89.6억 | 2021 | 139억 |
| 1996 | 118억 | 2009 | 91.2억 | 2022 | 153억 |
| 1997 | 113억 | 2010 | 90.9억 | 2023 | 163억 |
| 1998 | 92.3억 | 2011 | 100억 | 2024 | 152억 |
| 1999 | 95.7억 | 2012 | 105억 | 2025 | 182억 |
| 2000 | 88억 | 2013 | 99.6억 | | |
데이터 표
| 1976 | 6.2% | 1993 | 5% | 2010 | 2% |
| 1977 | 6.9% | 1994 | 4.7% | 2011 | 2.1% |
| 1978 | 7% | 1995 | 4.1% | 2012 | 2.1% |
| 1979 | 7.6% | 1996 | 4% | 2013 | 1.9% |
| 1980 | 7.3% | 1997 | 3.7% | 2014 | 1.8% |
| 1981 | 6.6% | 1998 | 3.3% | 2015 | 1.8% |
| 1982 | 7% | 1999 | 3.1% | 2016 | 1.8% |
| 1983 | 6.3% | 2000 | 2.7% | 2017 | 1.8% |
| 1984 | 5.7% | 2001 | 2.7% | 2018 | 1.7% |
| 1985 | 6.1% | 2002 | 2.4% | 2019 | 1.8% |
| 1986 | 5.4% | 2003 | 2.4% | 2020 | 1.8% |
| 1987 | 4.9% | 2004 | 2.3% | 2021 | 1.8% |
| 1988 | 5.1% | 2005 | 2.1% | 2022 | 2% |
| 1989 | 5.3% | 2006 | 2% | 2023 | 2.2% |
| 1990 | 5.2% | 2007 | 2% | 2024 | 1.9% |
| 1991 | 5% | 2008 | 2.2% | 2025 | 2.1% |
| 1992 | 4.7% | 2009 | 2.3% | | |