Show data table
| 1993 | 26.1% | 2005 | 17.9% | 2017 | 21.2% |
| 1994 | 26.2% | 2006 | 18.1% | 2018 | 22.3% |
| 1995 | 17.8% | 2007 | 20.1% | 2019 | 23.9% |
| 1996 | 15.4% | 2008 | 20.5% | 2020 | 25.2% |
| 1997 | 15.8% | 2009 | 20.9% | 2021 | 24.1% |
| 1998 | 17.1% | 2010 | 21.2% | 2022 | 24.3% |
| 1999 | 19.3% | 2011 | 22.1% | 2023 | 24.9% |
| 2000 | 16.5% | 2012 | 20.9% | 2024 | 25.3% |
| 2001 | 17% | 2013 | 22.2% | 2025 | 25.5% |
| 2002 | 16.7% | 2014 | 22% | 2026 | 25.8% |
| 2003 | 15.2% | 2015 | 21.5% | | |
| 2004 | 15.5% | 2016 | 21.4% | | |
Show data table
| 1993 | 1.02B | 2005 | 401B | 2017 | 1.18T |
| 1994 | 48.9B | 2006 | 479B | 2018 | 1.34T |
| 1995 | 93.2B | 2007 | 633B | 2019 | 1.57T |
| 1996 | 102B | 2008 | 731B | 2020 | 1.56T |
| 1997 | 127B | 2009 | 656B | 2021 | 1.68T |
| 1998 | 164B | 2010 | 734B | 2022 | 2.06T |
| 1999 | 191B | 2011 | 835B | 2023 | 2.36T |
| 2000 | 170B | 2012 | 893B | 2024 | 2.58T |
| 2001 | 200B | 2013 | 1.01T | 2025 | 2.89T |
| 2002 | 228B | 2014 | 1.06T | 2026 | 3.17T |
| 2003 | 247B | 2015 | 1.08T | | |
| 2004 | 295B | 2016 | 1.09T | | |
Show data table
| 2005 | 19.9% | 2013 | 23.8% | 2021 | 28.7% |
| 2006 | 20% | 2014 | 24% | 2022 | 26.4% |
| 2007 | 22.4% | 2015 | 26.3% | 2023 | 26.9% |
| 2008 | 22.2% | 2016 | 27% | 2024 | 29% |
| 2009 | 28.6% | 2017 | 25.9% | 2025 | 29.2% |
| 2010 | 26.2% | 2018 | 24.1% | 2026 | 30.3% |
| 2011 | 25% | 2019 | 24.9% | | |
| 2012 | 22.4% | 2020 | 30.7% | | |
Show data table
| 2005 | 446B | 2013 | 1.08T | 2021 | 2.01T |
| 2006 | 531B | 2014 | 1.16T | 2022 | 2.24T |
| 2007 | 706B | 2015 | 1.33T | 2023 | 2.55T |
| 2008 | 793B | 2016 | 1.37T | 2024 | 2.95T |
| 2009 | 897B | 2017 | 1.44T | 2025 | 3.31T |
| 2010 | 907B | 2018 | 1.45T | 2026 | 3.73T |
| 2011 | 943B | 2019 | 1.63T | | |
| 2012 | 956B | 2020 | 1.89T | | |