Show data table
| 1980 | 3.53B | 1996 | 7.69B | 2012 | 14.9B |
| 1981 | 3.64B | 1997 | 7.72B | 2013 | 16.2B |
| 1982 | 3.35B | 1998 | 8.64B | 2014 | 18.1B |
| 1983 | 2.88B | 1999 | 9.11B | 2015 | 17.7B |
| 1984 | 2.97B | 2000 | 9.14B | 2016 | 21.1B |
| 1985 | 3.1B | 2001 | 8.32B | 2017 | 25.1B |
| 1986 | 4.13B | 2002 | 9.42B | 2018 | 26.7B |
| 1987 | 5.73B | 2003 | 11.6B | 2019 | 25B |
| 1988 | 6.35B | 2004 | 14B | 2020 | 22B |
| 1989 | 5.88B | 2005 | 17.1B | 2021 | 26.2B |
| 1990 | 6.71B | 2006 | 17.7B | 2022 | 29.2B |
| 1991 | 7.17B | 2007 | 22B | 2023 | 31.7B |
| 1992 | 7.34B | 2008 | 18.2B | 2024 | 33.2B |
| 1993 | 6.44B | 2009 | 13.2B | 2025 | 38.6B |
| 1994 | 6.61B | 2010 | 13.9B | 2026 | 43.8B |
| 1995 | 7.37B | 2011 | 15.4B | | |
Show data table
| 1980 | 16.9B | 1996 | 511B | 2012 | 1.87T |
| 1981 | 26.3B | 1997 | 547B | 2013 | 1.98T |
| 1982 | 41.3B | 1998 | 613B | 2014 | 2.11T |
| 1983 | 71.4B | 1999 | 659B | 2015 | 2.34T |
| 1984 | 94.2B | 2000 | 719B | 2016 | 2.55T |
| 1985 | 129B | 2001 | 811B | 2017 | 2.68T |
| 1986 | 170B | 2002 | 863B | 2018 | 2.89T |
| 1987 | 222B | 2003 | 887B | 2019 | 3.06T |
| 1988 | 273B | 2004 | 980B | 2020 | 2.98T |
| 1989 | 335B | 2005 | 1.08T | 2021 | 3.33T |
| 1990 | 391B | 2006 | 1.24T | 2022 | 3.95T |
| 1991 | 423B | 2007 | 1.41T | 2023 | 4.37T |
| 1992 | 423B | 2008 | 1.6T | 2024 | 4.58T |
| 1993 | 435B | 2009 | 1.63T | 2025 | 4.96T |
| 1994 | 462B | 2010 | 1.7T | 2026 | 5.37T |
| 1995 | 477B | 2011 | 1.78T | | |
Show data table
| 1980 | 1.13T | 1996 | 1.56T | 2012 | 2.51T |
| 1981 | 1.17T | 1997 | 1.63T | 2013 | 2.6T |
| 1982 | 1.2T | 1998 | 1.74T | 2014 | 2.65T |
| 1983 | 1.17T | 1999 | 1.81T | 2015 | 2.75T |
| 1984 | 1.22T | 2000 | 1.9T | 2016 | 2.92T |
| 1985 | 1.26T | 2001 | 1.97T | 2017 | 3.02T |
| 1986 | 1.34T | 2002 | 1.98T | 2018 | 3.16T |
| 1987 | 1.46T | 2003 | 2.03T | 2019 | 3.2T |
| 1988 | 1.45T | 2004 | 2.18T | 2020 | 2.98T |
| 1989 | 1.46T | 2005 | 2.33T | 2021 | 3.14T |
| 1990 | 1.48T | 2006 | 2.47T | 2022 | 3.42T |
| 1991 | 1.47T | 2007 | 2.68T | 2023 | 3.59T |
| 1992 | 1.42T | 2008 | 2.73T | 2024 | 3.54T |
| 1993 | 1.44T | 2009 | 2.5T | 2025 | 3.59T |
| 1994 | 1.49T | 2010 | 2.44T | 2026 | 3.66T |
| 1995 | 1.49T | 2011 | 2.48T | | |