Show data table
| 1980 | 217M | 1996 | 605M | 2012 | 1.19B |
| 1981 | 230M | 1997 | 624M | 2013 | 1.29B |
| 1982 | 229M | 1998 | 542M | 2014 | 1.34B |
| 1983 | 215M | 1999 | 578M | 2015 | 1.31B |
| 1984 | 215M | 2000 | 497M | 2016 | 1.38B |
| 1985 | 196M | 2001 | 485M | 2017 | 1.47B |
| 1986 | 175M | 2002 | 410M | 2018 | 1.61B |
| 1987 | 184M | 2003 | 418M | 2019 | 1.62B |
| 1988 | 209M | 2004 | 468M | 2020 | 1.54B |
| 1989 | 205M | 2005 | 553M | 2021 | 1.56B |
| 1990 | 255M | 2006 | 617M | 2022 | 1.47B |
| 1991 | 270M | 2007 | 695M | 2023 | 1.51B |
| 1992 | 319M | 2008 | 776M | 2024 | 1.58B |
| 1993 | 356M | 2009 | 806M | 2025 | 1.7B |
| 1994 | 477M | 2010 | 898M | 2026 | 1.84B |
| 1995 | 556M | 2011 | 1.06B | | |
Show data table
| 1980 | 180M | 1996 | 2.16B | 2012 | 8.72B |
| 1981 | 200M | 1997 | 2.32B | 2013 | 9.39B |
| 1982 | 222M | 1998 | 2.61B | 2014 | 9.85B |
| 1983 | 247M | 1999 | 2.8B | 2015 | 10.4B |
| 1984 | 274M | 2000 | 2.53B | 2016 | 11B |
| 1985 | 290M | 2001 | 2.56B | 2017 | 11.6B |
| 1986 | 305M | 2002 | 2.77B | 2018 | 12.8B |
| 1987 | 368M | 2003 | 3.14B | 2019 | 13.2B |
| 1988 | 435M | 2004 | 3.5B | 2020 | 12.6B |
| 1989 | 470M | 2005 | 4.16B | 2021 | 12.5B |
| 1990 | 644M | 2006 | 4.7B | 2022 | 12B |
| 1991 | 732M | 2007 | 5.32B | 2023 | 12.6B |
| 1992 | 933M | 2008 | 6.02B | 2024 | 13.4B |
| 1993 | 1.14B | 2009 | 6.49B | 2025 | 14.2B |
| 1994 | 1.57B | 2010 | 7.24B | 2026 | 15.3B |
| 1995 | 1.89B | 2011 | 8.13B | | |
Show data table
| 1980 | 3.8B | 1996 | 6.49B | 2012 | 8.71B |
| 1981 | 3.73B | 1997 | 6.43B | 2013 | 9.17B |
| 1982 | 3.67B | 1998 | 6.51B | 2014 | 9.28B |
| 1983 | 3.81B | 1999 | 6.48B | 2015 | 9.44B |
| 1984 | 3.82B | 2000 | 5.56B | 2016 | 9.96B |
| 1985 | 3.7B | 2001 | 5.11B | 2017 | 10.3B |
| 1986 | 3.69B | 2002 | 4.97B | 2018 | 10.6B |
| 1987 | 4B | 2003 | 5.29B | 2019 | 10.7B |
| 1988 | 4.05B | 2004 | 5.7B | 2020 | 10.4B |
| 1989 | 4.23B | 2005 | 6.12B | 2021 | 10.3B |
| 1990 | 4.32B | 2006 | 6.37B | 2022 | 10.1B |
| 1991 | 4.58B | 2007 | 6.61B | 2023 | 10.4B |
| 1992 | 5.16B | 2008 | 7.02B | 2024 | 10.7B |
| 1993 | 5.37B | 2009 | 7.22B | 2025 | 11B |
| 1994 | 5.8B | 2010 | 7.92B | 2026 | 11.3B |
| 1995 | 6.39B | 2011 | 8.51B | | |