Show data table
| 1980 | 8.85B | 1996 | 11.2B | 2012 | 30.2B |
| 1981 | 10B | 1997 | 11.4B | 2013 | 33.7B |
| 1982 | 9.62B | 1998 | 11.3B | 2014 | 36.4B |
| 1983 | 9.69B | 1999 | 11.6B | 2015 | 32.2B |
| 1984 | 10.2B | 2000 | 10.2B | 2016 | 33.8B |
| 1985 | 10.7B | 2001 | 11B | 2017 | 36.1B |
| 1986 | 13.9B | 2002 | 12.4B | 2018 | 40B |
| 1987 | 16.2B | 2003 | 15.9B | 2019 | 39.7B |
| 1988 | 16.4B | 2004 | 18.8B | 2020 | 40.8B |
| 1989 | 14.6B | 2005 | 19.5B | 2021 | 45B |
| 1990 | 14.6B | 2006 | 20.9B | 2022 | 44.4B |
| 1991 | 16.3B | 2007 | 23.9B | 2023 | 48.8B |
| 1992 | 15B | 2008 | 27.7B | 2024 | 53.3B |
| 1993 | 15.6B | 2009 | 27.9B | 2025 | 59.3B |
| 1994 | 10.6B | 2010 | 27.5B | 2026 | 65.1B |
| 1995 | 10.1B | 2011 | 30.6B | | |
Show data table
| 1980 | 1.85T | 1996 | 5.63T | 2012 | 15.4T |
| 1981 | 2.36T | 1997 | 6.14T | 2013 | 16.66T |
| 1982 | 2.85T | 1998 | 6.69T | 2014 | 17.97T |
| 1983 | 3.44T | 1999 | 7.12T | 2015 | 19.04T |
| 1984 | 4.19T | 2000 | 7.5T | 2016 | 20.04T |
| 1985 | 5.04T | 2001 | 8.02T | 2017 | 20.96T |
| 1986 | 5.39T | 2002 | 8.61T | 2018 | 22.2T |
| 1987 | 5.15T | 2003 | 9.26T | 2019 | 23.24T |
| 1988 | 4.78T | 2004 | 9.93T | 2020 | 23.47T |
| 1989 | 4.61T | 2005 | 10.29T | 2021 | 24.96T |
| 1990 | 4.4T | 2006 | 10.92T | 2022 | 27.66T |
| 1991 | 4.39T | 2007 | 11.45T | 2023 | 29.61T |
| 1992 | 4.2T | 2008 | 12.36T | 2024 | 32.32T |
| 1993 | 4.14T | 2009 | 13.14T | 2025 | 34.43T |
| 1994 | 4.62T | 2010 | 13.61T | 2026 | 36.23T |
| 1995 | 5.23T | 2011 | 14.43T | | |
Show data table
| 1980 | 6.46T | 1996 | 8.56T | 2012 | 16.34T |
| 1981 | 7.57T | 1997 | 9.01T | 2013 | 17.16T |
| 1982 | 8.14T | 1998 | 9.46T | 2014 | 18.14T |
| 1983 | 8.7T | 1999 | 9.84T | 2015 | 19.17T |
| 1984 | 9.34T | 2000 | 10.22T | 2016 | 20.04T |
| 1985 | 10.1T | 2001 | 10.66T | 2017 | 20.75T |
| 1986 | 10.79T | 2002 | 11.14T | 2018 | 21.57T |
| 1987 | 10.56T | 2003 | 11.74T | 2019 | 22.32T |
| 1988 | 9.73T | 2004 | 12.57T | 2020 | 22.38T |
| 1989 | 9.55T | 2005 | 12.85T | 2021 | 23.12T |
| 1990 | 8.97T | 2006 | 13.34T | 2022 | 23.99T |
| 1991 | 8.63T | 2007 | 13.92T | 2023 | 24.79T |
| 1992 | 8.36T | 2008 | 14.32T | 2024 | 25.66T |
| 1993 | 8.1T | 2009 | 14.68T | 2025 | 26.45T |
| 1994 | 7.9T | 2010 | 15.11T | 2026 | 27.34T |
| 1995 | 8.16T | 2011 | 15.62T | | |