Show data table
| 1980 | 170M | 1996 | 788M | 2012 | 1.6B |
| 1981 | 194M | 1997 | 805M | 2013 | 1.66B |
| 1982 | 183M | 1998 | 877M | 2014 | 1.75B |
| 1983 | 197M | 1999 | 921M | 2015 | 1.81B |
| 1984 | 251M | 2000 | 932M | 2016 | 1.87B |
| 1985 | 284M | 2001 | 892M | 2017 | 2B |
| 1986 | 340M | 2002 | 899M | 2018 | 2.06B |
| 1987 | 375M | 2003 | 987M | 2019 | 2.1B |
| 1988 | 429M | 2004 | 1.07B | 2020 | 1.51B |
| 1989 | 486M | 2005 | 1.14B | 2021 | 1.87B |
| 1990 | 579M | 2006 | 1.27B | 2022 | 2.33B |
| 1991 | 613M | 2007 | 1.33B | 2023 | 2.4B |
| 1992 | 674M | 2008 | 1.43B | 2024 | 2.57B |
| 1993 | 684M | 2009 | 1.4B | 2025 | 2.65B |
| 1994 | 713M | 2010 | 1.48B | 2026 | 2.77B |
| 1995 | 762M | 2011 | 1.57B | | |
Show data table
| 1980 | 459M | 1996 | 2.13B | 2012 | 4.32B |
| 1981 | 524M | 1997 | 2.18B | 2013 | 4.48B |
| 1982 | 494M | 1998 | 2.37B | 2014 | 4.72B |
| 1983 | 532M | 1999 | 2.49B | 2015 | 4.88B |
| 1984 | 679M | 2000 | 2.52B | 2016 | 5.04B |
| 1985 | 767M | 2001 | 2.41B | 2017 | 5.4B |
| 1986 | 917M | 2002 | 2.43B | 2018 | 5.57B |
| 1987 | 1.01B | 2003 | 2.66B | 2019 | 5.66B |
| 1988 | 1.16B | 2004 | 2.88B | 2020 | 4.08B |
| 1989 | 1.31B | 2005 | 3.06B | 2021 | 5.05B |
| 1990 | 1.56B | 2006 | 3.42B | 2022 | 6.3B |
| 1991 | 1.66B | 2007 | 3.59B | 2023 | 6.47B |
| 1992 | 1.82B | 2008 | 3.85B | 2024 | 6.95B |
| 1993 | 1.85B | 2009 | 3.78B | 2025 | 7.16B |
| 1994 | 1.93B | 2010 | 4B | 2026 | 7.47B |
| 1995 | 2.06B | 2011 | 4.24B | | |
Show data table
| 1980 | 1.45B | 1996 | 3.71B | 2012 | 5.1B |
| 1981 | 1.53B | 1997 | 3.69B | 2013 | 4.99B |
| 1982 | 1.56B | 1998 | 3.92B | 2014 | 5.05B |
| 1983 | 1.62B | 1999 | 4.02B | 2015 | 5.04B |
| 1984 | 1.75B | 2000 | 4.03B | 2016 | 5.23B |
| 1985 | 1.98B | 2001 | 3.89B | 2017 | 5.41B |
| 1986 | 2.26B | 2002 | 3.91B | 2018 | 5.57B |
| 1987 | 2.35B | 2003 | 4.07B | 2019 | 5.53B |
| 1988 | 2.67B | 2004 | 4.37B | 2020 | 4.21B |
| 1989 | 2.91B | 2005 | 4.35B | 2021 | 4.69B |
| 1990 | 3.2B | 2006 | 4.63B | 2022 | 5.65B |
| 1991 | 3.21B | 2007 | 4.72B | 2023 | 5.84B |
| 1992 | 3.47B | 2008 | 4.95B | 2024 | 6.11B |
| 1993 | 3.49B | 2009 | 4.86B | 2025 | 6.21B |
| 1994 | 3.55B | 2010 | 4.88B | 2026 | 6.33B |
| 1995 | 3.61B | 2011 | 5.12B | | |