Show data table
| 1991 | 14.4% | 2003 | 34.6% | 2015 | 32.2% |
| 1992 | 19% | 2004 | 27.5% | 2016 | 37.6% |
| 1993 | 18.3% | 2005 | 23.8% | 2017 | 46.4% |
| 1994 | 19.5% | 2006 | 20% | 2018 | 40% |
| 1995 | 21.8% | 2007 | 17.6% | 2019 | 39.8% |
| 1996 | 20.8% | 2008 | 19.2% | 2020 | 42.9% |
| 1997 | 20.7% | 2009 | 19.1% | 2021 | 42.2% |
| 1998 | 25.4% | 2010 | 18.3% | 2022 | 39.2% |
| 1999 | 27.7% | 2011 | 19.3% | 2023 | 39.2% |
| 2000 | 32.6% | 2012 | 17.4% | 2024 | 39.1% |
| 2001 | 33.5% | 2013 | 16.4% | 2025 | 40.9% |
| 2002 | 35.1% | 2014 | 17.8% | 2026 | 43.2% |
Show data table
| 1991 | 3.58B | 2003 | 14.7B | 2015 | 30B |
| 1992 | 4.99B | 2004 | 12.4B | 2016 | 37B |
| 1993 | 4.94B | 2005 | 11.3B | 2017 | 49.9B |
| 1994 | 5.88B | 2006 | 10.8B | 2018 | 45.6B |
| 1995 | 6.73B | 2007 | 10.3B | 2019 | 48.5B |
| 1996 | 6.73B | 2008 | 12.7B | 2020 | 50.4B |
| 1997 | 7.25B | 2009 | 13.4B | 2021 | 50.5B |
| 1998 | 9.38B | 2010 | 13.1B | 2022 | 52B |
| 1999 | 10.6B | 2011 | 14.7B | 2023 | 55.5B |
| 2000 | 13.5B | 2012 | 13.4B | 2024 | 60.4B |
| 2001 | 13.9B | 2013 | 13.4B | 2025 | 66.7B |
| 2002 | 14.2B | 2014 | 15.2B | 2026 | 74.7B |