데이터 표
| 1995 | 24.7억 | 2006 | 28.5억 | 2017 | 42.3억 |
| 1996 | 23.7억 | 2007 | 33.8억 | 2018 | 59.1억 |
| 1997 | 18.4억 | 2008 | 36.1억 | 2019 | 59.6억 |
| 1998 | 16.5억 | 2009 | 31.5억 | 2020 | 34.5억 |
| 1999 | 22.7억 | 2010 | 32.5억 | 2021 | 43억 |
| 2000 | 26.9억 | 2011 | 34.8억 | 2022 | 43.8억 |
| 2001 | 17.7억 | 2012 | 29.9억 | 2023 | 60.6억 |
| 2002 | 18억 | 2013 | 25.7억 | 2024 | 39.8억 |
| 2003 | 21.2억 | 2014 | 28.2억 | 2025 | 47.6억 |
| 2004 | 24.8억 | 2015 | 33.7억 | 2026 | 49.7억 |
| 2005 | 26.2억 | 2016 | 46억 | | |
데이터 표
| 1995 | 12% | 2006 | 6.6% | 2017 | 6.4% |
| 1996 | 11.6% | 2007 | 6.5% | 2018 | 8.3% |
| 1997 | 10% | 2008 | 6.1% | 2019 | 8.5% |
| 1998 | 8.6% | 2009 | 5.8% | 2020 | 4.7% |
| 1999 | 10.8% | 2010 | 5.8% | 2021 | 5% |
| 2000 | 12.7% | 2011 | 5.6% | 2022 | 5.4% |
| 2001 | 8.3% | 2012 | 5% | 2023 | 6.8% |
| 2002 | 7.6% | 2013 | 3.9% | 2024 | 4.3% |
| 2003 | 7.1% | 2014 | 4.1% | 2025 | 4.7% |
| 2004 | 7.1% | 2015 | 5.6% | 2026 | 4.5% |
| 2005 | 6.9% | 2016 | 7.4% | | |