데이터 표
| 1987 | 13.2억 | 2006 | 12.9억 | 2017 | 64억 |
| 1988 | 13.1억 | 2007 | 17.8억 | 2018 | 68.9억 |
| 1989 | 4.59억 | 2008 | 20.5억 | 2019 | 72.6억 |
| 1990 | 5.12억 | 2009 | 28.9억 | 2020 | 71.6억 |
| 1991 | 4.28억 | 2010 | 27.1억 | 2021 | 75.3억 |
| 1992 | 3.33억 | 2011 | 30.3억 | 2022 | 70.9억 |
| 1993 | 2.98억 | 2012 | 47.4억 | 2023 | 79.6억 |
| 1994 | 4.31억 | 2013 | 55.2억 | 2024 | 85.9억 |
| 2003 | 8.42억 | 2014 | 56.3억 | 2025 | 105억 |
| 2004 | 9.15억 | 2015 | 61.1억 | | |
| 2005 | 10.3억 | 2016 | 63.3억 | | |
데이터 표
| 1987 | 4% | 2006 | 1.9% | 2017 | 2.3% |
| 1988 | 7.1% | 2007 | 2.3% | 2018 | 2.2% |
| 1989 | 7.3% | 2008 | 2.1% | 2019 | 2.2% |
| 1990 | 7.9% | 2009 | 2.7% | 2020 | 2.1% |
| 1991 | 5.6% | 2010 | 1.8% | 2021 | 2.1% |
| 1992 | 3.4% | 2011 | 1.8% | 2022 | 1.7% |
| 1993 | 2.3% | 2012 | 2.4% | 2023 | 1.8% |
| 1994 | 2.6% | 2013 | 2.6% | 2024 | 1.8% |
| 2003 | 2.1% | 2014 | 2.4% | 2025 | 2.2% |
| 2004 | 2% | 2015 | 2.6% | | |
| 2005 | 1.8% | 2016 | 2.5% | | |