데이터 표
| 1997 | 21.9% | 2007 | 29.5% | 2017 | 8.8% |
| 1998 | 33.3% | 2008 | 26.1% | 2018 | 7.9% |
| 1999 | 35.4% | 2009 | 17.2% | 2019 | 7.8% |
| 2000 | 37.4% | 2010 | 21.6% | 2020 | 9.1% |
| 2001 | 44.6% | 2011 | 18.1% | 2021 | 16.1% |
| 2002 | 55.5% | 2012 | 13.3% | 2022 | 16.5% |
| 2003 | 51.8% | 2013 | 11.6% | 2023 | 22.3% |
| 2004 | 49.4% | 2014 | 10.1% | 2024 | 26.1% |
| 2005 | 38.5% | 2015 | 7.9% | 2025 | 28.7% |
| 2006 | 36.9% | 2016 | 7.5% | 2026 | 29.9% |
데이터 표
| 1997 | 5.08억 | 2007 | 15.7억 | 2017 | 10.2억 |
| 1998 | 8.7억 | 2008 | 15.7억 | 2018 | 10.2억 |
| 1999 | 9.91억 | 2009 | 11.2억 | 2019 | 10.4억 |
| 2000 | 9.47억 | 2010 | 15.7억 | 2020 | 11.5억 |
| 2001 | 11.4억 | 2011 | 14.7억 | 2021 | 20.2억 |
| 2002 | 15.4억 | 2012 | 11.6억 | 2022 | 19.8억 |
| 2003 | 16.2억 | 2013 | 10.9억 | 2023 | 28.2억 |
| 2004 | 17.3억 | 2014 | 9.99억 | 2024 | 35억 |
| 2005 | 16억 | 2015 | 8.15억 | 2025 | 40.7억 |
| 2006 | 17.3억 | 2016 | 8.26억 | 2026 | 45.7억 |