Show data table
| 1980 | 732M | 1996 | 1.78B | 2012 | 4.74B |
| 1981 | 775M | 1997 | 1.9B | 2013 | 4.47B |
| 1982 | 693M | 1998 | 1.74B | 2014 | 4.29B |
| 1983 | 713M | 1999 | 1.71B | 2015 | 3.91B |
| 1984 | 610M | 2000 | 1.69B | 2016 | 3.72B |
| 1985 | 482M | 2001 | 1.5B | 2017 | 4.47B |
| 1986 | 617M | 2002 | 1.39B | 2018 | 4.64B |
| 1987 | 807M | 2003 | 2.13B | 2019 | 4.62B |
| 1988 | 958M | 2004 | 2.69B | 2020 | 4.14B |
| 1989 | 977M | 2005 | 3.08B | 2021 | 4.81B |
| 1990 | 1.2B | 2006 | 3.2B | 2022 | 4.75B |
| 1991 | 1.25B | 2007 | 3.36B | 2023 | 4.62B |
| 1992 | 1.38B | 2008 | 3.2B | 2024 | 4.86B |
| 1993 | 1.45B | 2009 | 3.49B | 2025 | 5.17B |
| 1994 | 1.57B | 2010 | 4.31B | 2026 | 5.79B |
| 1995 | 1.88B | 2011 | 4.69B | | |
Show data table
| 1980 | 570M | 1996 | 7.63B | 2012 | 38.9B |
| 1981 | 680M | 1997 | 8.75B | 2013 | 43.1B |
| 1982 | 753M | 1998 | 9.65B | 2014 | 46.5B |
| 1983 | 794M | 1999 | 10.5B | 2015 | 49.8B |
| 1984 | 900M | 2000 | 11.7B | 2016 | 54.8B |
| 1985 | 1.07B | 2001 | 12.9B | 2017 | 59.5B |
| 1986 | 1.41B | 2002 | 14.7B | 2018 | 61.5B |
| 1987 | 1.64B | 2003 | 16.1B | 2019 | 66.7B |
| 1988 | 2.18B | 2004 | 17.4B | 2020 | 68.1B |
| 1989 | 2.56B | 2005 | 19.6B | 2021 | 71.1B |
| 1990 | 3.11B | 2006 | 21.6B | 2022 | 77.7B |
| 1991 | 3.44B | 2007 | 23.7B | 2023 | 85.3B |
| 1992 | 3.95B | 2008 | 26.4B | 2024 | 89B |
| 1993 | 4.75B | 2009 | 29.5B | 2025 | 92.4B |
| 1994 | 5.59B | 2010 | 31.5B | 2026 | 96.7B |
| 1995 | 6.8B | 2011 | 34B | | |
Show data table
| 1980 | 14.1B | 1996 | 32.2B | 2012 | 54.5B |
| 1981 | 15B | 1997 | 33.2B | 2013 | 56.6B |
| 1982 | 15.2B | 1998 | 34.1B | 2014 | 57.8B |
| 1983 | 15.2B | 1999 | 35.1B | 2015 | 58.8B |
| 1984 | 15.5B | 2000 | 35.7B | 2016 | 60.5B |
| 1985 | 15.8B | 2001 | 36.1B | 2017 | 62.7B |
| 1986 | 18.8B | 2002 | 37.7B | 2018 | 62.7B |
| 1987 | 20.7B | 2003 | 39.2B | 2019 | 66.7B |
| 1988 | 22.2B | 2004 | 40.6B | 2020 | 64.8B |
| 1989 | 24.3B | 2005 | 43B | 2021 | 67.5B |
| 1990 | 26.7B | 2006 | 45.6B | 2022 | 67.8B |
| 1991 | 27.2B | 2007 | 47.6B | 2023 | 70.2B |
| 1992 | 28.1B | 2008 | 48B | 2024 | 72.2B |
| 1993 | 28.9B | 2009 | 48.8B | 2025 | 74.8B |
| 1994 | 29.6B | 2010 | 50.6B | 2026 | 77.9B |
| 1995 | 31.1B | 2011 | 51.7B | | |