Show data table
| 1980 | 5.2B | 1996 | 4.93B | 2012 | 11.6B |
| 1981 | 4.76B | 1997 | 4.26B | 2013 | 12.4B |
| 1982 | 4.79B | 1998 | 4.4B | 2014 | 12.5B |
| 1983 | 4.69B | 1999 | 4.28B | 2015 | 11.3B |
| 1984 | 3.91B | 2000 | 4.63B | 2016 | 11.8B |
| 1985 | 3.8B | 2001 | 5.44B | 2017 | 13.2B |
| 1986 | 4.35B | 2002 | 5.35B | 2018 | 13.8B |
| 1987 | 3.21B | 2003 | 6.37B | 2019 | 14.1B |
| 1988 | 3.19B | 2004 | 5.07B | 2020 | 13.1B |
| 1989 | 3.18B | 2005 | 5.86B | 2021 | 14.4B |
| 1990 | 3.93B | 2006 | 6.4B | 2022 | 15.3B |
| 1991 | 3.26B | 2007 | 8.53B | 2023 | 16B |
| 1992 | 3.72B | 2008 | 10.7B | 2024 | 17.6B |
| 1993 | 4.06B | 2009 | 9.62B | 2025 | 19.6B |
| 1994 | 3.52B | 2010 | 9.98B | 2026 | 21.2B |
| 1995 | 3.84B | 2011 | 11.6B | | |
Show data table
| 1980 | 220B | 1996 | 4.01T | 2012 | 25.42T |
| 1981 | 259B | 1997 | 4.34T | 2013 | 27.42T |
| 1982 | 335B | 1998 | 4.79T | 2014 | 30.24T |
| 1983 | 403B | 1999 | 5.38T | 2015 | 33.22T |
| 1984 | 450B | 2000 | 6.27T | 2016 | 37.64T |
| 1985 | 504B | 2001 | 7.17T | 2017 | 41.06T |
| 1986 | 588B | 2002 | 7.31T | 2018 | 45.89T |
| 1987 | 687B | 2003 | 7.89T | 2019 | 51.04T |
| 1988 | 898B | 2004 | 9.47T | 2020 | 49.44T |
| 1989 | 1.02T | 2005 | 11.74T | 2021 | 54.98T |
| 1990 | 1.17T | 2006 | 13.7T | 2022 | 62.84T |
| 1991 | 1.19T | 2007 | 15.97T | 2023 | 71.04T |
| 1992 | 1.38T | 2008 | 18.32T | 2024 | 79.62T |
| 1993 | 1.56T | 2009 | 18.81T | 2025 | 88.58T |
| 1994 | 2.16T | 2010 | 20.86T | 2026 | 98.92T |
| 1995 | 3.27T | 2011 | 23.39T | | |
Show data table
| 1980 | 10.24T | 1996 | 10.83T | 2012 | 17.23T |
| 1981 | 9.23T | 1997 | 11.23T | 2013 | 17.63T |
| 1982 | 9.06T | 1998 | 11.67T | 2014 | 18.22T |
| 1983 | 9.14T | 1999 | 12.21T | 2015 | 18.79T |
| 1984 | 9.3T | 2000 | 12.76T | 2016 | 19.54T |
| 1985 | 9.41T | 2001 | 13.52T | 2017 | 20.31T |
| 1986 | 9.59T | 2002 | 11.84T | 2018 | 20.96T |
| 1987 | 9.71T | 2003 | 13T | 2019 | 21.88T |
| 1988 | 10.04T | 2004 | 13.69T | 2020 | 20.32T |
| 1989 | 10.45T | 2005 | 14.34T | 2021 | 21.26T |
| 1990 | 10.77T | 2006 | 15.11T | 2022 | 22.14T |
| 1991 | 10.09T | 2007 | 15.97T | 2023 | 23.08T |
| 1992 | 10.21T | 2008 | 17.05T | 2024 | 24.08T |
| 1993 | 10.43T | 2009 | 16.37T | 2025 | 24.76T |
| 1994 | 10.42T | 2010 | 16.47T | 2026 | 25.66T |
| 1995 | 10.6T | 2011 | 16.73T | | |