Show data table
| 2000 | 31.1% | 2009 | 31.8% | 2018 | 30.8% |
| 2001 | 32.3% | 2010 | 32.2% | 2019 | 30.1% |
| 2002 | 29.6% | 2011 | 32.2% | 2020 | 29.4% |
| 2003 | 30.8% | 2012 | 32.2% | 2021 | 27.6% |
| 2004 | 30.3% | 2013 | 32.3% | 2022 | 25.7% |
| 2005 | 31.2% | 2014 | 31.5% | 2023 | 27.5% |
| 2006 | 33.2% | 2015 | 31.9% | 2024 | 28.4% |
| 2007 | 31.3% | 2016 | 32.1% | 2025 | 29.6% |
| 2008 | 31.3% | 2017 | 30.6% | 2026 | 29.9% |
Show data table
| 2000 | 53.3B | 2009 | 323B | 2018 | 1.17T |
| 2001 | 80B | 2010 | 379B | 2019 | 1.33T |
| 2002 | 107B | 2011 | 456B | 2020 | 1.51T |
| 2003 | 146B | 2012 | 512B | 2021 | 2.05T |
| 2004 | 177B | 2013 | 592B | 2022 | 3.94T |
| 2005 | 213B | 2014 | 650B | 2023 | 7.45T |
| 2006 | 265B | 2015 | 751B | 2024 | 12.65T |
| 2007 | 280B | 2016 | 844B | 2025 | 18.66T |
| 2008 | 316B | 2017 | 963B | 2026 | 24.28T |
Show data table
| 2000 | 39.4% | 2009 | 37% | 2018 | 33.9% |
| 2001 | 43.9% | 2010 | 35.2% | 2019 | 34.8% |
| 2002 | 40.9% | 2011 | 32.6% | 2020 | 34% |
| 2003 | 38.3% | 2012 | 34% | 2021 | 30.5% |
| 2004 | 34.5% | 2013 | 33.5% | 2022 | 26.8% |
| 2005 | 32% | 2014 | 32.5% | 2023 | 32.7% |
| 2006 | 33.4% | 2015 | 32.4% | 2024 | 32.9% |
| 2007 | 32.7% | 2016 | 33.8% | 2025 | 32.4% |
| 2008 | 33.5% | 2017 | 32.4% | 2026 | 33.2% |
Show data table
| 2000 | 67.7B | 2009 | 375B | 2018 | 1.29T |
| 2001 | 109B | 2010 | 414B | 2019 | 1.53T |
| 2002 | 149B | 2011 | 461B | 2020 | 1.75T |
| 2003 | 181B | 2012 | 540B | 2021 | 2.27T |
| 2004 | 201B | 2013 | 615B | 2022 | 4.1T |
| 2005 | 218B | 2014 | 670B | 2023 | 8.86T |
| 2006 | 267B | 2015 | 763B | 2024 | 14.66T |
| 2007 | 292B | 2016 | 888B | 2025 | 20.41T |
| 2008 | 338B | 2017 | 1.02T | 2026 | 27.03T |