데이터 표
| 2000 | 21.3% | 2009 | 23.8% | 2018 | 26.4% |
| 2001 | 21.6% | 2010 | 23.8% | 2019 | 26.3% |
| 2002 | 21.3% | 2011 | 24.4% | 2020 | 25% |
| 2003 | 21% | 2012 | 24.6% | 2021 | 27.1% |
| 2004 | 21.7% | 2013 | 25% | 2022 | 27.6% |
| 2005 | 25% | 2014 | 25.4% | 2023 | 26.9% |
| 2006 | 25.5% | 2015 | 25.8% | 2024 | 27.3% |
| 2007 | 25.6% | 2016 | 26.2% | 2025 | 28.4% |
| 2008 | 25.5% | 2017 | 25.8% | 2026 | 28.5% |
데이터 표
| 2000 | 2,239억 | 2009 | 6,648억 | 2018 | 1.42조 |
| 2001 | 2,519억 | 2010 | 7,280억 | 2019 | 1.48조 |
| 2002 | 2,892억 | 2011 | 8,110억 | 2020 | 1.39조 |
| 2003 | 3,134억 | 2012 | 8,766억 | 2021 | 1.68조 |
| 2004 | 3,580억 | 2013 | 9,674억 | 2022 | 1.84조 |
| 2005 | 4,600억 | 2014 | 1.05조 | 2023 | 1.89조 |
| 2006 | 5,243억 | 2015 | 1.14조 | 2024 | 2.01조 |
| 2007 | 6,018억 | 2016 | 1.25조 | 2025 | 2.17조 |
| 2008 | 6,665억 | 2017 | 1.31조 | 2026 | 2.28조 |
데이터 표
| 2000 | 22.6% | 2009 | 28.5% | 2018 | 30.2% |
| 2001 | 22.6% | 2010 | 28.3% | 2019 | 31.4% |
| 2002 | 22.2% | 2011 | 28.1% | 2020 | 34.6% |
| 2003 | 22.6% | 2012 | 28.6% | 2021 | 32.7% |
| 2004 | 22.7% | 2013 | 28.9% | 2022 | 31.9% |
| 2005 | 25.1% | 2014 | 29.3% | 2023 | 32.5% |
| 2006 | 24.7% | 2015 | 30.2% | 2024 | 33% |
| 2007 | 24.4% | 2016 | 29.9% | 2025 | 34.2% |
| 2008 | 26% | 2017 | 29.9% | 2026 | 33.3% |
데이터 표
| 2000 | 2,385억 | 2009 | 7,952억 | 2018 | 1.62조 |
| 2001 | 2,637억 | 2010 | 8,660억 | 2019 | 1.77조 |
| 2002 | 3,023억 | 2011 | 9,342억 | 2020 | 1.93조 |
| 2003 | 3,371억 | 2012 | 1.02조 | 2021 | 2.03조 |
| 2004 | 3,752억 | 2013 | 1.12조 | 2022 | 2.13조 |
| 2005 | 4,618억 | 2014 | 1.21조 | 2023 | 2.29조 |
| 2006 | 5,075억 | 2015 | 1.33조 | 2024 | 2.42조 |
| 2007 | 5,733억 | 2016 | 1.42조 | 2025 | 2.61조 |
| 2008 | 6,792억 | 2017 | 1.52조 | 2026 | 2.67조 |