Show data table
| 1980 | 38.6B | 1996 | 103B | 2012 | 250B |
| 1981 | 45.7B | 1997 | 102B | 2013 | 259B |
| 1982 | 49.9B | 1998 | 101B | 2014 | 271B |
| 1983 | 46.6B | 1999 | 96B | 2015 | 300B |
| 1984 | 50.6B | 2000 | 99.4B | 2016 | 314B |
| 1985 | 50.6B | 2001 | 96.8B | 2017 | 339B |
| 1986 | 51.8B | 2002 | 98.2B | 2018 | 356B |
| 1987 | 54.2B | 2003 | 113B | 2019 | 321B |
| 1988 | 62.4B | 2004 | 132B | 2020 | 300B |
| 1989 | 65B | 2005 | 145B | 2021 | 348B |
| 1990 | 65.3B | 2006 | 162B | 2022 | 375B |
| 1991 | 74.2B | 2007 | 184B | 2023 | 337B |
| 1992 | 79.3B | 2008 | 202B | 2024 | 372B |
| 1993 | 84B | 2009 | 187B | 2025 | 408B |
| 1994 | 84.6B | 2010 | 197B | | |
| 1995 | 98.9B | 2011 | 231B | | |
Show data table
| 1980 | 382B | 1996 | 3.47T | 2012 | 22.34T |
| 1981 | 452B | 1997 | 3.97T | 2013 | 25.04T |
| 1982 | 527B | 1998 | 4.38T | 2014 | 27.95T |
| 1983 | 592B | 1999 | 4.81T | 2015 | 30.43T |
| 1984 | 682B | 2000 | 5.15T | 2016 | 32.73T |
| 1985 | 768B | 2001 | 5.66T | 2017 | 35.55T |
| 1986 | 836B | 2002 | 6.03T | 2018 | 39.19T |
| 1987 | 931B | 2003 | 6.58T | 2019 | 43.8T |
| 1988 | 1.1T | 2004 | 7.61T | 2020 | 47.54T |
| 1989 | 1.25T | 2005 | 8.62T | 2021 | 55.84T |
| 1990 | 1.4T | 2006 | 9.69T | 2022 | 66.66T |
| 1991 | 1.66T | 2007 | 11.17T | 2023 | 83.65T |
| 1992 | 1.97T | 2008 | 12.65T | 2024 | 105.38T |
| 1993 | 2.18T | 2009 | 14.71T | 2025 | 113.93T |
| 1994 | 2.55T | 2010 | 16.51T | 2026 | 127.33T |
| 1995 | 3.05T | 2011 | 19.73T | | |
Show data table
| 1980 | 5.68T | 1996 | 13.87T | 2012 | 26.26T |
| 1981 | 6.03T | 1997 | 14.11T | 2013 | 27.27T |
| 1982 | 6.49T | 1998 | 14.6T | 2014 | 28.24T |
| 1983 | 6.93T | 1999 | 15.21T | 2015 | 29.31T |
| 1984 | 7.2T | 2000 | 15.81T | 2016 | 30.51T |
| 1985 | 7.83T | 2001 | 16.38T | 2017 | 31.91T |
| 1986 | 8.33T | 2002 | 16.81T | 2018 | 33.86T |
| 1987 | 8.81T | 2003 | 17.68T | 2019 | 34.92T |
| 1988 | 9.38T | 2004 | 19.04T | 2020 | 34.59T |
| 1989 | 9.83T | 2005 | 20.56T | 2021 | 36.58T |
| 1990 | 10.28T | 2006 | 21.73T | 2022 | 38.84T |
| 1991 | 10.81T | 2007 | 22.84T | 2023 | 38.76T |
| 1992 | 11.62T | 2008 | 23.85T | 2024 | 39.78T |
| 1993 | 11.87T | 2009 | 24.11T | 2025 | 41.01T |
| 1994 | 12.39T | 2010 | 24.65T | 2026 | 42.49T |
| 1995 | 13.01T | 2011 | 25.44T | | |