Show data table
| 1994 | 2.84B | 2005 | 5.13B | 2016 | 15.4B |
| 1995 | 3.28B | 2006 | 5.35B | 2017 | 16.1B |
| 1996 | 3.41B | 2007 | 5.82B | 2018 | 16.3B |
| 1997 | 3.76B | 2008 | 7.31B | 2019 | 17.1B |
| 1998 | 4.07B | 2009 | 8.09B | 2020 | 15.5B |
| 1999 | 4.27B | 2010 | 9.68B | 2021 | 18.1B |
| 2000 | 4.31B | 2011 | 11.2B | 2022 | 19.2B |
| 2001 | 4B | 2012 | 12.2B | 2023 | 18.6B |
| 2002 | 3.56B | 2013 | 13.5B | 2024 | 16B |
| 2003 | 3.97B | 2014 | 14B | | |
| 2004 | 4.6B | 2015 | 14B | | |
Show data table
| 1994 | 8.56B | 2005 | 23B | 2016 | 59.2B |
| 1995 | 9.88B | 2006 | 23.8B | 2017 | 58.1B |
| 1996 | 10.9B | 2007 | 23.9B | 2018 | 58.4B |
| 1997 | 13B | 2008 | 26.2B | 2019 | 61.1B |
| 1998 | 15.5B | 2009 | 31.8B | 2020 | 53.5B |
| 1999 | 17.7B | 2010 | 36.2B | 2021 | 58.5B |
| 2000 | 17.6B | 2011 | 40B | 2022 | 64.4B |
| 2001 | 16.8B | 2012 | 47.1B | 2023 | 68.3B |
| 2002 | 16.8B | 2013 | 48.8B | 2024 | 59.3B |
| 2003 | 18.1B | 2014 | 50.1B | | |
| 2004 | 20.6B | 2015 | 54.3B | | |
Show data table
| 1994 | 19.7B | 2005 | 34B | 2016 | 59.1B |
| 1995 | 21.1B | 2006 | 33.6B | 2017 | 60B |
| 1996 | 21.3B | 2007 | 34.9B | 2018 | 60.7B |
| 1997 | 24.4B | 2008 | 37.5B | 2019 | 61.5B |
| 1998 | 27.9B | 2009 | 40.7B | 2020 | 54.6B |
| 1999 | 30.3B | 2010 | 43.1B | 2021 | 58.4B |
| 2000 | 27.7B | 2011 | 47.2B | 2022 | 60.8B |
| 2001 | 25.1B | 2012 | 50.1B | 2023 | 60.2B |
| 2002 | 22B | 2013 | 52.4B | 2024 | 46.4B |
| 2003 | 25B | 2014 | 52.4B | | |
| 2004 | 30.5B | 2015 | 54.3B | | |