데이터 표
| 2000 | 18% | 2009 | 22.8% | 2018 | 26.4% |
| 2001 | 19.1% | 2010 | 24% | 2019 | 26.4% |
| 2002 | 17.4% | 2011 | 23.8% | 2020 | 31.5% |
| 2003 | 19.8% | 2012 | 24.6% | 2021 | 30.6% |
| 2004 | 20.6% | 2013 | 25% | 2022 | 29% |
| 2005 | 20% | 2014 | 24.7% | 2023 | 27.2% |
| 2006 | 20.9% | 2015 | 24.8% | 2024 | 26.3% |
| 2007 | 20.8% | 2016 | 24.9% | 2025 | 27.2% |
| 2008 | 19.6% | 2017 | 25.1% | 2026 | 27.6% |
데이터 표
| 2000 | 253억 | 2009 | 706억 | 2018 | 1,456억 |
| 2001 | 296억 | 2010 | 803억 | 2019 | 1,569억 |
| 2002 | 298억 | 2011 | 878억 | 2020 | 1,890억 |
| 2003 | 363억 | 2012 | 960억 | 2021 | 2,045억 |
| 2004 | 408억 | 2013 | 1,042억 | 2022 | 2,148억 |
| 2005 | 431억 | 2014 | 1,105억 | 2023 | 2,224억 |
| 2006 | 497억 | 2015 | 1,179억 | 2024 | 2,312억 |
| 2007 | 559억 | 2016 | 1,250억 | 2025 | 2,528억 |
| 2008 | 596억 | 2017 | 1,320억 | 2026 | 2,731억 |