Show data table
| 1990 | 31.3% | 2003 | 26.6% | 2016 | 32.5% |
| 1991 | 31.4% | 2004 | 25.7% | 2017 | 33.1% |
| 1992 | 30.2% | 2005 | 27.4% | 2018 | 31.2% |
| 1993 | 29.7% | 2006 | 30.8% | 2019 | 31.9% |
| 1994 | 28.1% | 2007 | 32.1% | 2020 | 33.4% |
| 1995 | 27.9% | 2008 | 31.9% | 2021 | 30.6% |
| 1996 | 26.7% | 2009 | 31.6% | 2022 | 30.2% |
| 1997 | 28.5% | 2010 | 28.5% | 2023 | 33.9% |
| 1998 | 28.5% | 2011 | 31.4% | 2024 | 35.8% |
| 1999 | 29.9% | 2012 | 31.9% | 2025 | 33% |
| 2000 | 29.3% | 2013 | 33.6% | 2026 | 31.6% |
| 2001 | 28.7% | 2014 | 35.3% | | |
| 2002 | 28.5% | 2015 | 35.4% | | |
Show data table
| 1990 | 2.08B | 2003 | 10B | 2016 | 51.2B |
| 1991 | 2.47B | 2004 | 11.1B | 2017 | 56.8B |
| 1992 | 2.84B | 2005 | 12.8B | 2018 | 56.6B |
| 1993 | 3.07B | 2006 | 16.1B | 2019 | 57.8B |
| 1994 | 3.53B | 2007 | 19.8B | 2020 | 58.2B |
| 1995 | 3.99B | 2008 | 22.3B | 2021 | 56.1B |
| 1996 | 4.54B | 2009 | 23.7B | 2022 | 62.1B |
| 1997 | 5.41B | 2010 | 23.5B | 2023 | 77.5B |
| 1998 | 6.04B | 2011 | 28.3B | 2024 | 87.7B |
| 1999 | 7B | 2012 | 34.1B | 2025 | 87.4B |
| 2000 | 8.02B | 2013 | 39.5B | 2026 | 91.2B |
| 2001 | 8.84B | 2014 | 47.7B | | |
| 2002 | 10.2B | 2015 | 51.7B | | |
Show data table
| 1990 | 30.2% | 2003 | 31.1% | 2016 | 41.8% |
| 1991 | 33% | 2004 | 28.4% | 2017 | 38.1% |
| 1992 | 32.8% | 2005 | 27.7% | 2018 | 36.3% |
| 1993 | 32.4% | 2006 | 27.4% | 2019 | 37.4% |
| 1994 | 28.7% | 2007 | 26.1% | 2020 | 41.5% |
| 1995 | 29.6% | 2008 | 28.4% | 2021 | 39.3% |
| 1996 | 30.4% | 2009 | 32% | 2022 | 36.6% |
| 1997 | 30.9% | 2010 | 33.5% | 2023 | 37% |
| 1998 | 31.3% | 2011 | 38.5% | 2024 | 39.6% |
| 1999 | 31.8% | 2012 | 35% | 2025 | 39.4% |
| 2000 | 30.1% | 2013 | 38.3% | 2026 | 37.6% |
| 2001 | 30.7% | 2014 | 41.8% | | |
| 2002 | 29.8% | 2015 | 43.7% | | |
Show data table
| 1990 | 2.01B | 2003 | 11.7B | 2016 | 65.9B |
| 1991 | 2.59B | 2004 | 12.2B | 2017 | 65.4B |
| 1992 | 3.08B | 2005 | 12.9B | 2018 | 65.8B |
| 1993 | 3.35B | 2006 | 14.3B | 2019 | 67.8B |
| 1994 | 3.6B | 2007 | 16.1B | 2020 | 72.3B |
| 1995 | 4.24B | 2008 | 19.9B | 2021 | 72B |
| 1996 | 5.17B | 2009 | 24B | 2022 | 75.2B |
| 1997 | 5.86B | 2010 | 27.6B | 2023 | 84.7B |
| 1998 | 6.63B | 2011 | 34.7B | 2024 | 97.1B |
| 1999 | 7.44B | 2012 | 37.4B | 2025 | 105B |
| 2000 | 8.23B | 2013 | 45B | 2026 | 109B |
| 2001 | 9.46B | 2014 | 56.4B | | |
| 2002 | 10.7B | 2015 | 63.8B | | |