Show data table
| 1980 | 1.91B | 1996 | 3.73B | 2012 | 10.2B |
| 1981 | 1.12B | 1997 | 3.52B | 2013 | 12B |
| 1982 | 1.12B | 1998 | 1.33B | 2014 | 13.3B |
| 1983 | 2.05B | 1999 | 1.42B | 2015 | 14.4B |
| 1984 | 2.93B | 2000 | 1.72B | 2016 | 15.9B |
| 1985 | 3.69B | 2001 | 1.76B | 2017 | 17.1B |
| 1986 | 2.58B | 2002 | 1.84B | 2018 | 18.1B |
| 1987 | 1.82B | 2003 | 2.26B | 2019 | 18.8B |
| 1988 | 1.18B | 2004 | 2.65B | 2020 | 18.5B |
| 1989 | 1.46B | 2005 | 3.08B | 2021 | 18.5B |
| 1990 | 1.74B | 2006 | 3.93B | 2022 | 15.1B |
| 1991 | 2.05B | 2007 | 4.76B | 2023 | 15B |
| 1992 | 2.35B | 2008 | 5.95B | 2024 | 15.8B |
| 1993 | 2.65B | 2009 | 6.43B | 2025 | 17.8B |
| 1994 | 3.08B | 2010 | 7.51B | 2026 | 19B |
| 1995 | 3.58B | 2011 | 8.96B | | |
Show data table
| 1980 | 19.8B | 1996 | 3.45T | 2012 | 81.61T |
| 1981 | 22.6B | 1997 | 4.4T | 2013 | 93.87T |
| 1982 | 39.7B | 1998 | 4.4T | 2014 | 106.8T |
| 1983 | 72.5B | 1999 | 9.92T | 2015 | 117.25T |
| 1984 | 104B | 2000 | 14.13T | 2016 | 129.28T |
| 1985 | 168B | 2001 | 16.67T | 2017 | 140.7T |
| 1986 | 248B | 2002 | 19.69T | 2018 | 152.41T |
| 1987 | 322B | 2003 | 23.65T | 2019 | 163.08T |
| 1988 | 469B | 2004 | 28.06T | 2020 | 167.67T |
| 1989 | 853B | 2005 | 32.48T | 2021 | 180.75T |
| 1990 | 1.22T | 2006 | 39.7T | 2022 | 217.35T |
| 1991 | 1.44T | 2007 | 45.65T | 2023 | 280.52T |
| 1992 | 1.69T | 2008 | 51.95T | 2024 | 340.47T |
| 1993 | 1.9T | 2009 | 54.79T | 2025 | 385.22T |
| 1994 | 2.22T | 2010 | 62T | 2026 | 437.81T |
| 1995 | 2.84T | 2011 | 71.96T | | |
Show data table
| 1980 | 11.31T | 1996 | 28.38T | 2012 | 81.61T |
| 1981 | 13.04T | 1997 | 30.34T | 2013 | 88.16T |
| 1982 | 13.65T | 1998 | 31.64T | 2014 | 94.87T |
| 1983 | 14.06T | 1999 | 32.91T | 2015 | 101.77T |
| 1984 | 14.97T | 2000 | 35.03T | 2016 | 108.91T |
| 1985 | 16.33T | 2001 | 36.7T | 2017 | 116.42T |
| 1986 | 17.12T | 2002 | 39.2T | 2018 | 123.7T |
| 1987 | 16.96T | 2003 | 41.62T | 2019 | 129.45T |
| 1988 | 16.6T | 2004 | 44.61T | 2020 | 128.89T |
| 1989 | 18.24T | 2005 | 47.71T | 2021 | 131.54T |
| 1990 | 19.46T | 2006 | 51.98T | 2022 | 134.51T |
| 1991 | 20.24T | 2007 | 56.06T | 2023 | 139.43T |
| 1992 | 21.66T | 2008 | 60.44T | 2024 | 145.42T |
| 1993 | 22.93T | 2009 | 64.9T | 2025 | 152.36T |
| 1994 | 24.8T | 2010 | 70.1T | 2026 | 158.47T |
| 1995 | 26.55T | 2011 | 75.7T | | |