Show data table
| 1995 | 19.9% | 2006 | 24.6% | 2017 | 34.7% |
| 1996 | 19.3% | 2007 | 27.3% | 2018 | 38.1% |
| 1997 | 19.1% | 2008 | 36.2% | 2019 | 36.3% |
| 1998 | 16.4% | 2009 | 30.6% | 2020 | 32.8% |
| 1999 | 19.3% | 2010 | 34% | 2021 | 35.9% |
| 2000 | 23.9% | 2011 | 39.5% | 2022 | 38.9% |
| 2001 | 21.4% | 2012 | 40.3% | 2023 | 36.1% |
| 2002 | 23.5% | 2013 | 38.6% | 2024 | 37.1% |
| 2003 | 22.3% | 2014 | 37.8% | 2025 | 35.5% |
| 2004 | 23.2% | 2015 | 37.2% | | |
| 2005 | 22.7% | 2016 | 33.8% | | |
Show data table
| 1995 | 4.38B | 2006 | 11.3B | 2017 | 36.3B |
| 1996 | 4.44B | 2007 | 13.6B | 2018 | 41B |
| 1997 | 4.95B | 2008 | 22.1B | 2019 | 39B |
| 1998 | 4.32B | 2009 | 18.4B | 2020 | 31.5B |
| 1999 | 3.65B | 2010 | 23.2B | 2021 | 38.4B |
| 2000 | 4.2B | 2011 | 31.2B | 2022 | 45.2B |
| 2001 | 4.96B | 2012 | 35.4B | 2023 | 43.6B |
| 2002 | 6.36B | 2013 | 37.2B | 2024 | 45.9B |
| 2003 | 6.91B | 2014 | 38.9B | 2025 | 46.3B |
| 2004 | 8.18B | 2015 | 36.2B | | |
| 2005 | 9.15B | 2016 | 33B | | |
Show data table
| 1995 | 22% | 2006 | 21.7% | 2017 | 40.5% |
| 1996 | 22.7% | 2007 | 24.7% | 2018 | 40.9% |
| 1997 | 22% | 2008 | 35.6% | 2019 | 39.8% |
| 1998 | 21.5% | 2009 | 34.3% | 2020 | 40.2% |
| 1999 | 24.1% | 2010 | 35.4% | 2021 | 37.5% |
| 2000 | 24.3% | 2011 | 39.6% | 2022 | 38.9% |
| 2001 | 21.4% | 2012 | 43.2% | 2023 | 39.6% |
| 2002 | 22.8% | 2013 | 46.7% | 2024 | 38.3% |
| 2003 | 21.3% | 2014 | 45.9% | 2025 | 38.4% |
| 2004 | 21.3% | 2015 | 44.1% | | |
| 2005 | 22% | 2016 | 44.1% | | |
Show data table
| 1995 | 4.83B | 2006 | 9.93B | 2017 | 42.3B |
| 1996 | 5.23B | 2007 | 12.3B | 2018 | 44B |
| 1997 | 5.68B | 2008 | 21.8B | 2019 | 42.8B |
| 1998 | 5.66B | 2009 | 20.6B | 2020 | 38.5B |
| 1999 | 4.56B | 2010 | 24.1B | 2021 | 40.1B |
| 2000 | 4.25B | 2011 | 31.3B | 2022 | 45.1B |
| 2001 | 4.95B | 2012 | 37.9B | 2023 | 47.8B |
| 2002 | 6.16B | 2013 | 45.1B | 2024 | 47.5B |
| 2003 | 6.59B | 2014 | 47.2B | 2025 | 50B |
| 2004 | 7.49B | 2015 | 42.9B | | |
| 2005 | 8.88B | 2016 | 43.1B | | |