Show data table
| 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 | 32.1% | 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% |
Show data table
| 1997 | 2.17T | 2007 | 4.3T | 2017 | 6.21T |
| 1998 | 2.22T | 2008 | 4.37T | 2018 | 6.23T |
| 1999 | 2.32T | 2009 | 4.74T | 2019 | 6.19T |
| 2000 | 2.71T | 2010 | 5.19T | 2020 | 6.4T |
| 2001 | 3.05T | 2011 | 5.47T | 2021 | 6.55T |
| 2002 | 3.17T | 2012 | 5.75T | 2022 | 6.73T |
| 2003 | 3.51T | 2013 | 5.94T | 2023 | 6.85T |
| 2004 | 3.88T | 2014 | 6.09T | 2024 | 6.89T |
| 2005 | 4.1T | 2015 | 6.13T | 2025 | 6.44T |
| 2006 | 4.19T | 2016 | 6.21T | 2026 | 8.45T |
Show data table
| 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% |
Show data table
| 1997 | 1.84T | 2007 | 4.05T | 2017 | 5.87T |
| 1998 | 1.65T | 2008 | 4.13T | 2018 | 5.88T |
| 1999 | 2.14T | 2009 | 4.5T | 2019 | 5.83T |
| 2000 | 2.51T | 2010 | 4.92T | 2020 | 6.02T |
| 2001 | 2.86T | 2011 | 5.2T | 2021 | 6.14T |
| 2002 | 2.97T | 2012 | 5.48T | 2022 | 6.3T |
| 2003 | 3.31T | 2013 | 5.65T | 2023 | 6.4T |
| 2004 | 3.66T | 2014 | 5.79T | 2024 | 6.41T |
| 2005 | 3.87T | 2015 | 5.81T | 2025 | 5.9T |
| 2006 | 3.95T | 2016 | 5.88T | 2026 | 7.87T |