데이터 표
| 2000 | 17% | 2009 | 21.2% | 2018 | 21.8% |
| 2001 | 16.2% | 2010 | 20.2% | 2019 | 22.1% |
| 2002 | 17.1% | 2011 | 20.1% | 2020 | 21.6% |
| 2003 | 17.6% | 2012 | 20.1% | 2021 | 24.2% |
| 2004 | 17.7% | 2013 | 20.1% | 2022 | 24.5% |
| 2005 | 17.6% | 2014 | 19.4% | 2023 | 24% |
| 2006 | 16.8% | 2015 | 20.2% | 2024 | 25.8% |
| 2007 | 17.4% | 2016 | 20.6% | 2025 | 27.7% |
| 2008 | 19.8% | 2017 | 22% | 2026 | 28.2% |
데이터 표
| 2000 | 231억 | 2009 | 643억 | 2018 | 1,107억 |
| 2001 | 240억 | 2010 | 655억 | 2019 | 1,039억 |
| 2002 | 278억 | 2011 | 692억 | 2020 | 987억 |
| 2003 | 320억 | 2012 | 738억 | 2021 | 1,262억 |
| 2004 | 349억 | 2013 | 782억 | 2022 | 1,484억 |
| 2005 | 376억 | 2014 | 797억 | 2023 | 1,610억 |
| 2006 | 407억 | 2015 | 878억 | 2024 | 1,856억 |
| 2007 | 477억 | 2016 | 947억 | 2025 | 2,140억 |
| 2008 | 577억 | 2017 | 1,068억 | 2026 | 2,338억 |
데이터 표
| 1999 | 25.9% | 2009 | 24.5% | 2019 | 30.2% |
| 2000 | 21.2% | 2010 | 23.2% | 2020 | 32.1% |
| 2001 | 21.5% | 2011 | 23% | 2021 | 28.3% |
| 2002 | 22% | 2012 | 21.9% | 2022 | 27.6% |
| 2003 | 22.2% | 2013 | 23.4% | 2023 | 28.5% |
| 2004 | 21.9% | 2014 | 22.5% | 2024 | 32.6% |
| 2005 | 21.8% | 2015 | 23.7% | 2025 | 31.4% |
| 2006 | 20.7% | 2016 | 23.3% | 2026 | 31.3% |
| 2007 | 20.4% | 2017 | 23.6% | | |
| 2008 | 22.4% | 2018 | 23.9% | | |
데이터 표
| 1990 | 123억 | 2003 | 403억 | 2016 | 1,073억 |
| 1991 | 128억 | 2004 | 432억 | 2017 | 1,147억 |
| 1992 | 142억 | 2005 | 466억 | 2018 | 1,216억 |
| 1993 | 151억 | 2006 | 501억 | 2019 | 1,425억 |
| 1994 | 192억 | 2007 | 557억 | 2020 | 1,464억 |
| 1995 | 211억 | 2008 | 654억 | 2021 | 1,475억 |
| 1996 | 226억 | 2009 | 744억 | 2022 | 1,674억 |
| 1997 | 250억 | 2010 | 750억 | 2023 | 1,910억 |
| 1998 | 278억 | 2011 | 796억 | 2024 | 2,349억 |
| 1999 | 318억 | 2012 | 801억 | 2025 | 2,426억 |
| 2000 | 288억 | 2013 | 910억 | 2026 | 2,598억 |
| 2001 | 319억 | 2014 | 922억 | | |
| 2002 | 357억 | 2015 | 1,029억 | | |