데이터 표
| 1997 | 26.2% | 2007 | 24.4% | 2017 | 22.5% |
| 1998 | 24% | 2008 | 33.9% | 2018 | 24.1% |
| 1999 | 24.1% | 2009 | 19.4% | 2019 | 26.5% |
| 2000 | 32.5% | 2010 | 24.9% | 2020 | 22.3% |
| 2001 | 28.8% | 2011 | 22.3% | 2021 | 28.4% |
| 2002 | 32% | 2012 | 24.1% | 2022 | 29.2% |
| 2003 | 37.8% | 2013 | 25.1% | 2023 | 27.8% |
| 2004 | 30.4% | 2014 | 21.4% | 2024 | 15.5% |
| 2005 | 29.7% | 2015 | 23.9% | 2025 | 12.3% |
| 2006 | 32.2% | 2016 | 24.4% | 2026 | 10.7% |
데이터 표
| 1997 | 244억 | 2007 | 870억 | 2017 | 2,222억 |
| 1998 | 261억 | 2008 | 1,361억 | 2018 | 2,596억 |
| 1999 | 288억 | 2009 | 916억 | 2019 | 3,300억 |
| 2000 | 434억 | 2010 | 1,190억 | 2020 | 3,236억 |
| 2001 | 434억 | 2011 | 1,168억 | 2021 | 4,831억 |
| 2002 | 524억 | 2012 | 1,371억 | 2022 | 6,324억 |
| 2003 | 738억 | 2013 | 1,614억 | 2023 | 7,786억 |
| 2004 | 729억 | 2014 | 1,443억 | 2024 | 5,173억 |
| 2005 | 832억 | 2015 | 1,721억 | 2025 | 5,159억 |
| 2006 | 1,002억 | 2016 | 2,059억 | 2026 | 5,486억 |