Show data table
| 1995 | 20.2% | 2006 | 20.6% | 2017 | 21.1% |
| 1996 | 20.7% | 2007 | 20.2% | 2018 | 21.4% |
| 1997 | 20% | 2008 | 20% | 2019 | 21% |
| 1998 | 17.6% | 2009 | 19.5% | 2020 | 20.4% |
| 1999 | 17.5% | 2010 | 20.9% | 2021 | 20% |
| 2000 | 17.6% | 2011 | 21.2% | 2022 | 20% |
| 2001 | 19.1% | 2012 | 21.4% | 2023 | 20.8% |
| 2002 | 19% | 2013 | 22.2% | 2024 | 21.3% |
| 2003 | 20.3% | 2014 | 21.5% | 2025 | 21.1% |
| 2004 | 20.4% | 2015 | 22.5% | 2026 | 21% |
| 2005 | 21.8% | 2016 | 21.8% | | |
Show data table
| 1995 | 827B | 2006 | 1.7T | 2017 | 3.22T |
| 1996 | 934B | 2007 | 1.79T | 2018 | 3.45T |
| 1997 | 938B | 2008 | 1.95T | 2019 | 3.53T |
| 1998 | 823B | 2009 | 1.84T | 2020 | 3.24T |
| 1999 | 804B | 2010 | 2.22T | 2021 | 3.21T |
| 2000 | 851B | 2011 | 2.41T | 2022 | 3.43T |
| 2001 | 972B | 2012 | 2.52T | 2023 | 3.72T |
| 2002 | 1.02T | 2013 | 2.86T | 2024 | 3.94T |
| 2003 | 1.25T | 2014 | 2.82T | 2025 | 3.98T |
| 2004 | 1.38T | 2015 | 3.05T | 2026 | 4.06T |
| 2005 | 1.62T | 2016 | 3.12T | | |
Show data table
| 1995 | 17.2% | 2006 | 18.7% | 2017 | 21.6% |
| 1996 | 18% | 2007 | 20% | 2018 | 21.2% |
| 1997 | 21.6% | 2008 | 19.2% | 2019 | 20.6% |
| 1998 | 23.9% | 2009 | 21.7% | 2020 | 24.9% |
| 1999 | 26.5% | 2010 | 22% | 2021 | 26.8% |
| 2000 | 19.3% | 2011 | 21.1% | 2022 | 24.7% |
| 2001 | 20.8% | 2012 | 22.3% | 2023 | 22.7% |
| 2002 | 25.7% | 2013 | 21.6% | 2024 | 22.6% |
| 2003 | 18.3% | 2014 | 22.2% | 2025 | 23% |
| 2004 | 19.3% | 2015 | 22.3% | 2026 | 23.3% |
| 2005 | 19.6% | 2016 | 21.4% | | |
Show data table
| 1995 | 702B | 2006 | 1.55T | 2017 | 3.29T |
| 1996 | 810B | 2007 | 1.77T | 2018 | 3.42T |
| 1997 | 1.02T | 2008 | 1.88T | 2019 | 3.45T |
| 1998 | 1.12T | 2009 | 2.05T | 2020 | 3.95T |
| 1999 | 1.22T | 2010 | 2.34T | 2021 | 4.28T |
| 2000 | 938B | 2011 | 2.4T | 2022 | 4.22T |
| 2001 | 1.06T | 2012 | 2.62T | 2023 | 4.07T |
| 2002 | 1.37T | 2013 | 2.78T | 2024 | 4.18T |
| 2003 | 1.13T | 2014 | 2.91T | 2025 | 4.34T |
| 2004 | 1.31T | 2015 | 3.03T | 2026 | 4.49T |
| 2005 | 1.46T | 2016 | 3.06T | | |