데이터 표
| 2000 | 31.1% | 2009 | 31.8% | 2018 | 30.8% |
| 2001 | 32.3% | 2010 | 32.2% | 2019 | 30.1% |
| 2002 | 29.6% | 2011 | 32.3% | 2020 | 29.4% |
| 2003 | 30.8% | 2012 | 32.2% | 2021 | 27.6% |
| 2004 | 30.3% | 2013 | 32.3% | 2022 | 25.7% |
| 2005 | 31.2% | 2014 | 31.5% | 2023 | 27.5% |
| 2006 | 33.2% | 2015 | 31.9% | 2024 | 28.4% |
| 2007 | 31.3% | 2016 | 32.1% | 2025 | 29.6% |
| 2008 | 31.3% | 2017 | 30.6% | 2026 | 29.9% |
데이터 표
| 2000 | 533억 | 2009 | 3,225억 | 2018 | 1.17조 |
| 2001 | 800억 | 2010 | 3,791억 | 2019 | 1.33조 |
| 2002 | 1,075억 | 2011 | 4,560억 | 2020 | 1.51조 |
| 2003 | 1,457억 | 2012 | 5,116억 | 2021 | 2.05조 |
| 2004 | 1,774억 | 2013 | 5,924억 | 2022 | 3.94조 |
| 2005 | 2,134억 | 2014 | 6,504억 | 2023 | 7.45조 |
| 2006 | 2,653억 | 2015 | 7,512억 | 2024 | 12.65조 |
| 2007 | 2,798억 | 2016 | 8,437억 | 2025 | 18.66조 |
| 2008 | 3,164억 | 2017 | 9,631억 | 2026 | 24.28조 |
데이터 표
| 2000 | 39.4% | 2009 | 37% | 2018 | 33.9% |
| 2001 | 43.9% | 2010 | 35.2% | 2019 | 34.8% |
| 2002 | 40.9% | 2011 | 32.6% | 2020 | 34% |
| 2003 | 38.3% | 2012 | 34% | 2021 | 30.5% |
| 2004 | 34.5% | 2013 | 33.5% | 2022 | 26.8% |
| 2005 | 32% | 2014 | 32.5% | 2023 | 32.7% |
| 2006 | 33.4% | 2015 | 32.4% | 2024 | 32.9% |
| 2007 | 32.7% | 2016 | 33.8% | 2025 | 32.4% |
| 2008 | 33.5% | 2017 | 32.4% | 2026 | 33.2% |
데이터 표
| 2000 | 677억 | 2009 | 3,747억 | 2018 | 1.29조 |
| 2001 | 1,089억 | 2010 | 4,143억 | 2019 | 1.53조 |
| 2002 | 1,485억 | 2011 | 4,610억 | 2020 | 1.75조 |
| 2003 | 1,814억 | 2012 | 5,398억 | 2021 | 2.27조 |
| 2004 | 2,014억 | 2013 | 6,145억 | 2022 | 4.1조 |
| 2005 | 2,185억 | 2014 | 6,703억 | 2023 | 8.86조 |
| 2006 | 2,671억 | 2015 | 7,632억 | 2024 | 14.66조 |
| 2007 | 2,920억 | 2016 | 8,878억 | 2025 | 20.41조 |
| 2008 | 3,379억 | 2017 | 1.02조 | 2026 | 27.03조 |