데이터 표
| 1997 | 19.2% | 2007 | 22.1% | 2017 | 23.2% |
| 1998 | 17% | 2008 | 21.4% | 2018 | 25% |
| 1999 | 17.2% | 2009 | 22.9% | 2019 | 25.6% |
| 2000 | 20.6% | 2010 | 22% | 2020 | 22.8% |
| 2001 | 20.3% | 2011 | 21.4% | 2021 | 17.8% |
| 2002 | 20.7% | 2012 | 18.7% | 2022 | 15.3% |
| 2003 | 18.7% | 2013 | 19.2% | 2023 | 18.1% |
| 2004 | 20.8% | 2014 | 19.2% | 2024 | 16.1% |
| 2005 | 21.8% | 2015 | 21% | 2025 | 18.5% |
| 2006 | 22.8% | 2016 | 22% | 2026 | 16% |
데이터 표
| 1997 | 433억 | 2007 | 996억 | 2017 | 2,272억 |
| 1998 | 384억 | 2008 | 1,083억 | 2018 | 2,490억 |
| 1999 | 454억 | 2009 | 1,211억 | 2019 | 2,763억 |
| 2000 | 563억 | 2010 | 1,297억 | 2020 | 2,597억 |
| 2001 | 572억 | 2011 | 1,452억 | 2021 | 2,992억 |
| 2002 | 614억 | 2012 | 1,556억 | 2022 | 4,691억 |
| 2003 | 577억 | 2013 | 1,648억 | 2023 | 6,378억 |
| 2004 | 683억 | 2014 | 1,638억 | 2024 | 8,265억 |
| 2005 | 747억 | 2015 | 1,855억 | 2025 | 1.05조 |
| 2006 | 868억 | 2016 | 2,034억 | 2026 | 1.14조 |
데이터 표
| 1997 | 20.9% | 2007 | 25.5% | 2017 | 26.3% |
| 1998 | 19.7% | 2008 | 24.1% | 2018 | 27.6% |
| 1999 | 17.6% | 2009 | 25.4% | 2019 | 28.1% |
| 2000 | 22.9% | 2010 | 23.9% | 2020 | 30.5% |
| 2001 | 24% | 2011 | 23.5% | 2021 | 24.8% |
| 2002 | 23.1% | 2012 | 21.8% | 2022 | 20.4% |
| 2003 | 23.5% | 2013 | 21.4% | 2023 | 23.7% |
| 2004 | 23.7% | 2014 | 23.1% | 2024 | 23.3% |
| 2005 | 28.4% | 2015 | 21.7% | 2025 | 23.9% |
| 2006 | 29% | 2016 | 25.2% | 2026 | 22.4% |
데이터 표
| 1997 | 472억 | 2007 | 1,146억 | 2017 | 2,579억 |
| 1998 | 444억 | 2008 | 1,224억 | 2018 | 2,740억 |
| 1999 | 467억 | 2009 | 1,343억 | 2019 | 3,034억 |
| 2000 | 625억 | 2010 | 1,408억 | 2020 | 3,484억 |
| 2001 | 677억 | 2011 | 1,597억 | 2021 | 4,155억 |
| 2002 | 685억 | 2012 | 1,814억 | 2022 | 6,256억 |
| 2003 | 725억 | 2013 | 1,833억 | 2023 | 8,360억 |
| 2004 | 777억 | 2014 | 1,968억 | 2024 | 1.2조 |
| 2005 | 971억 | 2015 | 1,921억 | 2025 | 1.35조 |
| 2006 | 1,102억 | 2016 | 2,331억 | 2026 | 1.59조 |