Show data table
| 1995 | 1.32B | 2006 | 2.47B | 2017 | 3.09B |
| 1996 | 1.38B | 2007 | 2.68B | 2018 | 3.28B |
| 1997 | 1.53B | 2008 | 2.84B | 2019 | 3.35B |
| 1998 | 1.67B | 2009 | 2.55B | 2020 | 2.47B |
| 1999 | 1.72B | 2010 | 2.45B | 2021 | 2.88B |
| 2000 | 1.87B | 2011 | 2.64B | 2022 | 3.32B |
| 2001 | 1.9B | 2012 | 2.62B | 2023 | 3.87B |
| 2002 | 1.96B | 2013 | 2.73B | 2024 | 4.29B |
| 2003 | 2.04B | 2014 | 2.79B | 2025 | 4.52B |
| 2004 | 2.26B | 2015 | 2.96B | 2026 | 4.67B |
| 2005 | 2.36B | 2016 | 2.98B | | |
Show data table
| 1986 | 726M | 2000 | 3.35B | 2014 | 5B |
| 1987 | 873M | 2001 | 3.4B | 2015 | 5.3B |
| 1988 | 1.07B | 2002 | 3.51B | 2016 | 5.34B |
| 1989 | 1.25B | 2003 | 3.66B | 2017 | 5.54B |
| 1990 | 1.37B | 2004 | 4.04B | 2018 | 5.86B |
| 1991 | 1.56B | 2005 | 4.22B | 2019 | 5.99B |
| 1992 | 1.72B | 2006 | 4.42B | 2020 | 4.42B |
| 1993 | 1.94B | 2007 | 4.79B | 2021 | 5.16B |
| 1994 | 2.23B | 2008 | 5.09B | 2022 | 5.95B |
| 1995 | 2.36B | 2009 | 4.57B | 2023 | 6.93B |
| 1996 | 2.47B | 2010 | 4.39B | 2024 | 7.67B |
| 1997 | 2.74B | 2011 | 4.72B | 2025 | 8.09B |
| 1998 | 2.98B | 2012 | 4.68B | 2026 | 8.36B |
| 1999 | 3.08B | 2013 | 4.88B | | |
Show data table
| 1986 | 1.67B | 2000 | 4.73B | 2014 | 4.95B |
| 1987 | 1.94B | 2001 | 4.59B | 2015 | 5.13B |
| 1988 | 2.31B | 2002 | 4.55B | 2016 | 5.2B |
| 1989 | 2.58B | 2003 | 4.6B | 2017 | 5.38B |
| 1990 | 2.69B | 2004 | 4.93B | 2018 | 5.55B |
| 1991 | 2.9B | 2005 | 4.91B | 2019 | 5.62B |
| 1992 | 3.07B | 2006 | 4.96B | 2020 | 4.28B |
| 1993 | 3.3B | 2007 | 5.12B | 2021 | 4.9B |
| 1994 | 3.57B | 2008 | 5.21B | 2022 | 5.43B |
| 1995 | 3.89B | 2009 | 4.61B | 2023 | 5.91B |
| 1996 | 3.95B | 2010 | 4.45B | 2024 | 6.36B |
| 1997 | 4.24B | 2011 | 4.61B | 2025 | 6.71B |
| 1998 | 4.29B | 2012 | 4.56B | 2026 | 6.87B |
| 1999 | 4.36B | 2013 | 4.88B | | |