Show data table
| 1998 | 20.3% | 2008 | 11.7% | 2018 | 15.9% |
| 1999 | 18.3% | 2009 | 10.9% | 2019 | 15.8% |
| 2000 | 15.4% | 2010 | 10.4% | 2020 | 14.8% |
| 2001 | 12.7% | 2011 | 10.8% | 2021 | 18.7% |
| 2002 | 11.3% | 2012 | 17.3% | 2022 | 18.6% |
| 2003 | 10.1% | 2013 | 22.4% | 2023 | 18.6% |
| 2004 | 9.9% | 2014 | 23.7% | 2024 | 21.7% |
| 2005 | 11.2% | 2015 | 19.4% | 2025 | 20.3% |
| 2006 | 12.2% | 2016 | 18.7% | 2026 | 20% |
| 2007 | 12.2% | 2017 | 16.3% | | |
Show data table
| 1998 | 315B | 2008 | 3.37T | 2018 | 15.99T |
| 1999 | 396B | 2009 | 3.58T | 2019 | 17.83T |
| 2000 | 416B | 2010 | 3.83T | 2020 | 15.54T |
| 2001 | 442B | 2011 | 4.57T | 2021 | 17.78T |
| 2002 | 590B | 2012 | 8.42T | 2022 | 23.36T |
| 2003 | 767B | 2013 | 12.71T | 2023 | 26.12T |
| 2004 | 950B | 2014 | 15.45T | 2024 | 34.98T |
| 2005 | 1.36T | 2015 | 14.11T | 2025 | 35.11T |
| 2006 | 2.02T | 2016 | 14.93T | 2026 | 38.88T |
| 2007 | 2.79T | 2017 | 14.57T | | |
Show data table
| 1998 | 25.2% | 2008 | 14.4% | 2018 | 18.7% |
| 1999 | 22.8% | 2009 | 14.4% | 2019 | 20.5% |
| 2000 | 21.4% | 2010 | 15.8% | 2020 | 21.3% |
| 2001 | 19.1% | 2011 | 15.6% | 2021 | 20.9% |
| 2002 | 15.3% | 2012 | 19.9% | 2022 | 21.3% |
| 2003 | 14.3% | 2013 | 23.9% | 2023 | 21.4% |
| 2004 | 14.6% | 2014 | 24.7% | 2024 | 25.8% |
| 2005 | 14.6% | 2015 | 23.7% | 2025 | 25.2% |
| 2006 | 15.6% | 2016 | 21.3% | 2026 | 25% |
| 2007 | 15.7% | 2017 | 19.7% | | |
Show data table
| 1998 | 391B | 2008 | 4.16T | 2018 | 18.76T |
| 1999 | 493B | 2009 | 4.75T | 2019 | 23.12T |
| 2000 | 579B | 2010 | 5.82T | 2020 | 22.37T |
| 2001 | 662B | 2011 | 6.61T | 2021 | 19.89T |
| 2002 | 800B | 2012 | 9.74T | 2022 | 26.82T |
| 2003 | 1.09T | 2013 | 13.58T | 2023 | 30T |
| 2004 | 1.39T | 2014 | 16.15T | 2024 | 41.6T |
| 2005 | 1.78T | 2015 | 17.26T | 2025 | 43.67T |
| 2006 | 2.59T | 2016 | 16.94T | 2026 | 48.64T |
| 2007 | 3.6T | 2017 | 17.64T | | |