데이터 표
| 1997 | 25% | 2007 | 32.2% | 2017 | 34.5% |
| 1998 | 23.7% | 2008 | 33.4% | 2018 | 33.8% |
| 1999 | 23.7% | 2009 | 36.7% | 2019 | 32.6% |
| 2000 | 26.2% | 2010 | 36.9% | 2020 | 32% |
| 2001 | 30.1% | 2011 | 38.3% | 2021 | 30.1% |
| 2002 | 29.8% | 2012 | 39.2% | 2022 | 29.5% |
| 2003 | 32.2% | 2013 | 38.9% | 2023 | 29% |
| 2004 | 33.4% | 2014 | 37.5% | 2024 | 26.8% |
| 2005 | 34.1% | 2015 | 35.9% | 2025 | 22.4% |
| 2006 | 33.3% | 2016 | 35.4% | 2026 | 27.6% |
데이터 표
| 1997 | 2.17조 | 2007 | 4.3조 | 2017 | 6.21조 |
| 1998 | 2.22조 | 2008 | 4.37조 | 2018 | 6.23조 |
| 1999 | 2.32조 | 2009 | 4.74조 | 2019 | 6.19조 |
| 2000 | 2.71조 | 2010 | 5.19조 | 2020 | 6.4조 |
| 2001 | 3.05조 | 2011 | 5.47조 | 2021 | 6.55조 |
| 2002 | 3.17조 | 2012 | 5.75조 | 2022 | 6.73조 |
| 2003 | 3.51조 | 2013 | 5.94조 | 2023 | 6.85조 |
| 2004 | 3.88조 | 2014 | 6.09조 | 2024 | 6.89조 |
| 2005 | 4.1조 | 2015 | 6.13조 | 2025 | 6.44조 |
| 2006 | 4.19조 | 2016 | 6.21조 | 2026 | 8.45조 |
데이터 표
| 1997 | 21.1% | 2007 | 30.3% | 2017 | 32.6% |
| 1998 | 17.6% | 2008 | 31.5% | 2018 | 31.9% |
| 1999 | 21.8% | 2009 | 34.8% | 2019 | 30.7% |
| 2000 | 24.3% | 2010 | 35% | 2020 | 30.1% |
| 2001 | 28.2% | 2011 | 36.5% | 2021 | 28.2% |
| 2002 | 27.9% | 2012 | 37.3% | 2022 | 27.6% |
| 2003 | 30.3% | 2013 | 37% | 2023 | 27.1% |
| 2004 | 31.6% | 2014 | 35.6% | 2024 | 24.9% |
| 2005 | 32.2% | 2015 | 34.1% | 2025 | 20.5% |
| 2006 | 31.4% | 2016 | 33.5% | 2026 | 25.7% |
데이터 표
| 1997 | 1.84조 | 2007 | 4.05조 | 2017 | 5.87조 |
| 1998 | 1.65조 | 2008 | 4.13조 | 2018 | 5.88조 |
| 1999 | 2.14조 | 2009 | 4.5조 | 2019 | 5.83조 |
| 2000 | 2.51조 | 2010 | 4.92조 | 2020 | 6.02조 |
| 2001 | 2.86조 | 2011 | 5.2조 | 2021 | 6.14조 |
| 2002 | 2.97조 | 2012 | 5.48조 | 2022 | 6.3조 |
| 2003 | 3.31조 | 2013 | 5.65조 | 2023 | 6.4조 |
| 2004 | 3.66조 | 2014 | 5.79조 | 2024 | 6.41조 |
| 2005 | 3.87조 | 2015 | 5.81조 | 2025 | 5.9조 |
| 2006 | 3.95조 | 2016 | 5.88조 | 2026 | 7.87조 |