Show data table
| 1990 | 17.2% | 2003 | 21.3% | 2016 | 27% |
| 1991 | 18.6% | 2004 | 23.1% | 2017 | 26.4% |
| 1992 | 20.2% | 2005 | 23.6% | 2018 | 26.4% |
| 1993 | 19.3% | 2006 | 23% | 2019 | 26% |
| 1994 | 18.1% | 2007 | 24.2% | 2020 | 23.8% |
| 1995 | 17% | 2008 | 26.1% | 2021 | 25.6% |
| 1996 | 18.8% | 2009 | 23.5% | 2022 | 25.6% |
| 1997 | 19.5% | 2010 | 23.1% | 2023 | 25.3% |
| 1998 | 22.3% | 2011 | 23% | 2024 | 24.5% |
| 1999 | 24.7% | 2012 | 22.9% | 2025 | 24.2% |
| 2000 | 23.6% | 2013 | 22.5% | 2026 | 24% |
| 2001 | 21.9% | 2014 | 23.6% | | |
| 2002 | 21.8% | 2015 | 25.2% | | |
Show data table
| 1990 | 2.95B | 2003 | 30.5B | 2016 | 134B |
| 1991 | 4.15B | 2004 | 37.3B | 2017 | 144B |
| 1992 | 5.18B | 2005 | 43.3B | 2018 | 152B |
| 1993 | 5.99B | 2006 | 47.5B | 2019 | 159B |
| 1994 | 7.13B | 2007 | 56.5B | 2020 | 137B |
| 1995 | 8.7B | 2008 | 68.6B | 2021 | 173B |
| 1996 | 11.6B | 2009 | 64.7B | 2022 | 197B |
| 1997 | 14.7B | 2010 | 69.1B | 2023 | 213B |
| 1998 | 19.2B | 2011 | 77B | 2024 | 226B |
| 1999 | 22.7B | 2012 | 82.7B | 2025 | 249B |
| 2000 | 25.2B | 2013 | 84.7B | 2026 | 267B |
| 2001 | 26B | 2014 | 97.8B | | |
| 2002 | 28.2B | 2015 | 116B | | |
Show data table
| 1990 | 19.4% | 2003 | 26.4% | 2016 | 27.4% |
| 1991 | 20.8% | 2004 | 25.5% | 2017 | 26.9% |
| 1992 | 21.6% | 2005 | 23.6% | 2018 | 26.2% |
| 1993 | 24.5% | 2006 | 24.4% | 2019 | 25.9% |
| 1994 | 19% | 2007 | 24.4% | 2020 | 28.4% |
| 1995 | 17.2% | 2008 | 26.4% | 2021 | 28.8% |
| 1996 | 18.7% | 2009 | 28.4% | 2022 | 24% |
| 1997 | 19.4% | 2010 | 26.5% | 2023 | 27.2% |
| 1998 | 19.4% | 2011 | 25.9% | 2024 | 25.7% |
| 1999 | 23.3% | 2012 | 26.4% | 2025 | 24.9% |
| 2000 | 22.1% | 2013 | 28% | 2026 | 25.5% |
| 2001 | 25.1% | 2014 | 26.4% | | |
| 2002 | 26.8% | 2015 | 26% | | |
Show data table
| 1990 | 3.32B | 2003 | 37.8B | 2016 | 136B |
| 1991 | 4.63B | 2004 | 41.3B | 2017 | 146B |
| 1992 | 5.56B | 2005 | 43.4B | 2018 | 150B |
| 1993 | 7.61B | 2006 | 50.3B | 2019 | 158B |
| 1994 | 7.51B | 2007 | 57.1B | 2020 | 163B |
| 1995 | 8.83B | 2008 | 69.3B | 2021 | 195B |
| 1996 | 11.5B | 2009 | 78.1B | 2022 | 185B |
| 1997 | 14.6B | 2010 | 79.2B | 2023 | 230B |
| 1998 | 16.7B | 2011 | 86.8B | 2024 | 236B |
| 1999 | 21.5B | 2012 | 95.2B | 2025 | 257B |
| 2000 | 23.6B | 2013 | 105B | 2026 | 283B |
| 2001 | 29.7B | 2014 | 109B | | |
| 2002 | 34.6B | 2015 | 120B | | |