Show data table
| 1980 | 13.9B | 1996 | 16.8B | 2012 | 37B |
| 1981 | 11.5B | 1997 | 16.2B | 2013 | 43.2B |
| 1982 | 10.3B | 1998 | 17.4B | 2014 | 48.9B |
| 1983 | 9.31B | 1999 | 17.1B | 2015 | 45.8B |
| 1984 | 9.28B | 2000 | 14.9B | 2016 | 48.4B |
| 1985 | 9.47B | 2001 | 15.5B | 2017 | 52.5B |
| 1986 | 12.7B | 2002 | 17.1B | 2018 | 58.5B |
| 1987 | 13.9B | 2003 | 21.2B | 2019 | 60.4B |
| 1988 | 14.1B | 2004 | 22.9B | 2020 | 63.1B |
| 1989 | 13.5B | 2005 | 23.6B | 2021 | 72.8B |
| 1990 | 14.9B | 2006 | 24.6B | 2022 | 71.1B |
| 1991 | 14.5B | 2007 | 28.2B | 2023 | 80.8B |
| 1992 | 15.4B | 2008 | 33.6B | 2024 | 87.1B |
| 1993 | 15.3B | 2009 | 33.7B | 2025 | 98.9B |
| 1994 | 11.5B | 2010 | 34.4B | 2026 | 112B |
| 1995 | 15.2B | 2011 | 35.5B | | |
Show data table
| 1980 | 2.93T | 1996 | 8.58T | 2012 | 18.91T |
| 1981 | 3.13T | 1997 | 9.46T | 2013 | 21.35T |
| 1982 | 3.39T | 1998 | 10.28T | 2014 | 24.14T |
| 1983 | 3.55T | 1999 | 10.53T | 2015 | 27.09T |
| 1984 | 4.06T | 2000 | 10.55T | 2016 | 28.69T |
| 1985 | 4.25T | 2001 | 11.34T | 2017 | 30.49T |
| 1986 | 4.39T | 2002 | 11.9T | 2018 | 32.51T |
| 1987 | 4.19T | 2003 | 12.3T | 2019 | 35.38T |
| 1988 | 4.2T | 2004 | 12.09T | 2020 | 36.28T |
| 1989 | 4.3T | 2005 | 12.46T | 2021 | 40.37T |
| 1990 | 4.06T | 2006 | 12.87T | 2022 | 44.24T |
| 1991 | 4.09T | 2007 | 13.48T | 2023 | 49T |
| 1992 | 4.08T | 2008 | 15T | 2024 | 52.82T |
| 1993 | 4.32T | 2009 | 15.85T | 2025 | 57.44T |
| 1994 | 6.38T | 2010 | 17.04T | 2026 | 62.37T |
| 1995 | 7.59T | 2011 | 16.74T | | |
Show data table
| 1980 | 12.83T | 1996 | 16.11T | 2012 | 20.93T |
| 1981 | 13.28T | 1997 | 17.03T | 2013 | 22.87T |
| 1982 | 13.3T | 1998 | 17.87T | 2014 | 24.89T |
| 1983 | 12.97T | 1999 | 18.16T | 2015 | 27.09T |
| 1984 | 12.71T | 2000 | 17.79T | 2016 | 29.03T |
| 1985 | 13.17T | 2001 | 17.81T | 2017 | 31.18T |
| 1986 | 13.8T | 2002 | 17.51T | 2018 | 32.69T |
| 1987 | 13.73T | 2003 | 17.27T | 2019 | 34.89T |
| 1988 | 13.89T | 2004 | 17.48T | 2020 | 35.13T |
| 1989 | 14.3T | 2005 | 17.79T | 2021 | 37.61T |
| 1990 | 14.14T | 2006 | 18.05T | 2022 | 40.02T |
| 1991 | 14.15T | 2007 | 18.37T | 2023 | 42.66T |
| 1992 | 14.11T | 2008 | 18.84T | 2024 | 45.23T |
| 1993 | 14.09T | 2009 | 19.45T | 2025 | 48.17T |
| 1994 | 14.11T | 2010 | 19.85T | 2026 | 51.16T |
| 1995 | 14.9T | 2011 | 18.88T | | |