Show data table
| 1980 | 24.8B | 1996 | 55.4B | 2012 | 160B |
| 1981 | 26.4B | 1997 | 57.6B | 2013 | 180B |
| 1982 | 24.7B | 1998 | 59.9B | 2014 | 207B |
| 1983 | 23.9B | 1999 | 61.5B | 2015 | 234B |
| 1984 | 26.8B | 2000 | 61.7B | 2016 | 265B |
| 1985 | 28.8B | 2001 | 62.5B | 2017 | 294B |
| 1986 | 29.6B | 2002 | 65B | 2018 | 321B |
| 1987 | 32.4B | 2003 | 71.8B | 2019 | 351B |
| 1988 | 34.9B | 2004 | 77.2B | 2020 | 374B |
| 1989 | 38.1B | 2005 | 79.5B | 2021 | 416B |
| 1990 | 41.1B | 2006 | 86B | 2022 | 460B |
| 1991 | 42.5B | 2007 | 95.4B | 2023 | 452B |
| 1992 | 43.3B | 2008 | 110B | 2024 | 450B |
| 1993 | 43.7B | 2009 | 123B | 2025 | 458B |
| 1994 | 46.4B | 2010 | 138B | 2026 | 511B |
| 1995 | 51.8B | 2011 | 154B | | |
Show data table
| 1980 | 384B | 1996 | 2.28T | 2012 | 12.64T |
| 1981 | 441B | 1997 | 2.47T | 2013 | 14.36T |
| 1982 | 495B | 1998 | 2.72T | 2014 | 16.1T |
| 1983 | 559B | 1999 | 2.95T | 2015 | 18.16T |
| 1984 | 670B | 2000 | 3.22T | 2016 | 20.76T |
| 1985 | 769B | 2001 | 3.49T | 2017 | 23.24T |
| 1986 | 865B | 2002 | 3.76T | 2018 | 26.39T |
| 1987 | 995B | 2003 | 4.17T | 2019 | 29.51T |
| 1988 | 1.09T | 2004 | 4.59T | 2020 | 31.7T |
| 1989 | 1.22T | 2005 | 5.12T | 2021 | 35.3T |
| 1990 | 1.37T | 2006 | 5.78T | 2022 | 39.72T |
| 1991 | 1.51T | 2007 | 6.59T | 2023 | 44.91T |
| 1992 | 1.64T | 2008 | 7.53T | 2024 | 50.03T |
| 1993 | 1.71T | 2009 | 8.45T | 2025 | 55.15T |
| 1994 | 1.85T | 2010 | 9.55T | 2026 | 62.84T |
| 1995 | 2.09T | 2011 | 10.97T | | |
Show data table
| 1980 | 3.66T | 1996 | 6.85T | 2012 | 16.18T |
| 1981 | 3.8T | 1997 | 7.15T | 2013 | 17.15T |
| 1982 | 3.89T | 1998 | 7.52T | 2014 | 18.19T |
| 1983 | 4.05T | 1999 | 7.87T | 2015 | 19.38T |
| 1984 | 4.26T | 2000 | 8.29T | 2016 | 20.76T |
| 1985 | 4.39T | 2001 | 8.71T | 2017 | 22.13T |
| 1986 | 4.58T | 2002 | 9.05T | 2018 | 23.75T |
| 1987 | 4.75T | 2003 | 9.48T | 2019 | 25.62T |
| 1988 | 4.86T | 2004 | 9.97T | 2020 | 26.5T |
| 1989 | 4.98T | 2005 | 10.62T | 2021 | 28.34T |
| 1990 | 5.28T | 2006 | 11.33T | 2022 | 30.35T |
| 1991 | 5.45T | 2007 | 12.13T | 2023 | 32.1T |
| 1992 | 5.73T | 2008 | 12.86T | 2024 | 33.46T |
| 1993 | 5.99T | 2009 | 13.51T | 2025 | 34.63T |
| 1994 | 6.24T | 2010 | 14.26T | 2026 | 36.25T |
| 1995 | 6.54T | 2011 | 15.19T | | |