Show data table
| 1997 | 13% | 2007 | 12.4% | 2017 | 12.5% |
| 1998 | 13.2% | 2008 | 11% | 2018 | 13.2% |
| 1999 | 13.5% | 2009 | 10.1% | 2019 | 13.5% |
| 2000 | 14.6% | 2010 | 10.8% | 2020 | 13.7% |
| 2001 | 15.2% | 2011 | 11.1% | 2021 | 14.2% |
| 2002 | 14.7% | 2012 | 10.7% | 2022 | 14% |
| 2003 | 15.5% | 2013 | 10.1% | 2023 | 14.4% |
| 2004 | 15.9% | 2014 | 10.8% | 2024 | 14.5% |
| 2005 | 14.3% | 2015 | 12.3% | 2025 | 15.1% |
| 2006 | 13.1% | 2016 | 12.5% | 2026 | 15.3% |
Show data table
| 1997 | 1.19T | 2007 | 3.75T | 2017 | 14.21T |
| 1998 | 1.35T | 2008 | 4.22T | 2018 | 16.71T |
| 1999 | 1.53T | 2009 | 4.97T | 2019 | 18.85T |
| 2000 | 1.86T | 2010 | 5.79T | 2020 | 19.32T |
| 2001 | 2.09T | 2011 | 7.72T | 2021 | 21.81T |
| 2002 | 2.23T | 2012 | 8.32T | 2022 | 24.48T |
| 2003 | 2.65T | 2013 | 8.46T | 2023 | 27.9T |
| 2004 | 3.1T | 2014 | 9.78T | 2024 | 31.13T |
| 2005 | 3.17T | 2015 | 12T | 2025 | 35.88T |
| 2006 | 3.37T | 2016 | 12.97T | 2026 | 41.24T |
Show data table
| 1997 | 13.9% | 2007 | 13.2% | 2017 | 16.3% |
| 1998 | 14% | 2008 | 12.9% | 2018 | 16.2% |
| 1999 | 14.7% | 2009 | 11.8% | 2019 | 18.3% |
| 2000 | 15.2% | 2010 | 15.4% | 2020 | 21.4% |
| 2001 | 16.2% | 2011 | 13.2% | 2021 | 22% |
| 2002 | 16.8% | 2012 | 13.1% | 2022 | 19.5% |
| 2003 | 16.5% | 2013 | 13.3% | 2023 | 19.3% |
| 2004 | 15.6% | 2014 | 13.6% | 2024 | 18.4% |
| 2005 | 14.5% | 2015 | 14.9% | 2025 | 22.2% |
| 2006 | 13.7% | 2016 | 15.2% | 2026 | 21.3% |
Show data table
| 1997 | 1.26T | 2007 | 3.99T | 2017 | 18.58T |
| 1998 | 1.42T | 2008 | 4.99T | 2018 | 20.54T |
| 1999 | 1.67T | 2009 | 5.75T | 2019 | 25.59T |
| 2000 | 1.94T | 2010 | 8.29T | 2020 | 30.27T |
| 2001 | 2.23T | 2011 | 9.14T | 2021 | 33.73T |
| 2002 | 2.54T | 2012 | 10.16T | 2022 | 33.98T |
| 2003 | 2.82T | 2013 | 11.13T | 2023 | 37.34T |
| 2004 | 3.03T | 2014 | 12.26T | 2024 | 39.58T |
| 2005 | 3.21T | 2015 | 14.54T | 2025 | 52.87T |
| 2006 | 3.53T | 2016 | 15.7T | 2026 | 57.17T |