Show data table
| 1980 | 4.09B | 1996 | 9.79B | 2012 | 33.3B |
| 1981 | 5.22B | 1997 | 9.96B | 2013 | 38.7B |
| 1982 | 5.47B | 1998 | 9.26B | 2014 | 40.4B |
| 1983 | 6.07B | 1999 | 8.84B | 2015 | 36.2B |
| 1984 | 4.93B | 2000 | 8.86B | 2016 | 36.1B |
| 1985 | 4.21B | 2001 | 8.5B | 2017 | 39B |
| 1986 | 5.03B | 2002 | 7.2B | 2018 | 40.2B |
| 1987 | 4.22B | 2003 | 7.69B | 2019 | 37.9B |
| 1988 | 5.58B | 2004 | 9.62B | 2020 | 35.4B |
| 1989 | 4.05B | 2005 | 10.7B | 2021 | 39.9B |
| 1990 | 4.9B | 2006 | 13.4B | 2022 | 41.8B |
| 1991 | 6.98B | 2007 | 17.9B | 2023 | 43.1B |
| 1992 | 7.16B | 2008 | 24.6B | 2024 | 44.7B |
| 1993 | 7.25B | 2009 | 22.4B | 2025 | 49.4B |
| 1994 | 7.87B | 2010 | 27.1B | 2026 | 60.5B |
| 1995 | 9.06B | 2011 | 33.7B | | |
Show data table
| 1980 | 516B | 1996 | 20.13T | 2012 | 147.23T |
| 1981 | 658B | 1997 | 21.7T | 2013 | 166.35T |
| 1982 | 689B | 1998 | 25.25T | 2014 | 180.17T |
| 1983 | 765B | 1999 | 27.56T | 2015 | 188.48T |
| 1984 | 991B | 2000 | 30.87T | 2016 | 204.65T |
| 1985 | 1.29T | 2001 | 34.88T | 2017 | 219.12T |
| 1986 | 1.71T | 2002 | 41.14T | 2018 | 230.58T |
| 1987 | 2.32T | 2003 | 49.41T | 2019 | 236.68T |
| 1988 | 3.07T | 2004 | 57.5T | 2020 | 239.91T |
| 1989 | 4.27T | 2005 | 66.34T | 2021 | 270.54T |
| 1990 | 6.03T | 2006 | 75.68T | 2022 | 292.17T |
| 1991 | 9.26T | 2007 | 89.87T | 2023 | 314.45T |
| 1992 | 10.74T | 2008 | 107.4T | 2024 | 338.24T |
| 1993 | 12.65T | 2009 | 111.03T | 2025 | 372.43T |
| 1994 | 14.99T | 2010 | 129.09T | 2026 | 400.3T |
| 1995 | 17.79T | 2011 | 141.49T | | |
Show data table
| 1980 | 61.86T | 1996 | 105.93T | 2012 | 158T |
| 1981 | 67.54T | 1997 | 110.42T | 2013 | 171.1T |
| 1982 | 66.59T | 1998 | 110.5T | 2014 | 180.17T |
| 1983 | 64.57T | 1999 | 108.99T | 2015 | 185.5T |
| 1984 | 66.38T | 2000 | 106.47T | 2016 | 193.42T |
| 1985 | 68.95T | 2001 | 105.58T | 2017 | 202.72T |
| 1986 | 69.14T | 2002 | 105.56T | 2018 | 209.22T |
| 1987 | 71.95T | 2003 | 110.12T | 2019 | 208.38T |
| 1988 | 76.18T | 2004 | 114.59T | 2020 | 206.67T |
| 1989 | 80.61T | 2005 | 117.03T | 2021 | 214.93T |
| 1990 | 83.94T | 2006 | 122.66T | 2022 | 214.87T |
| 1991 | 86.86T | 2007 | 129.31T | 2023 | 226.22T |
| 1992 | 88.34T | 2008 | 137.71T | 2024 | 236.79T |
| 1993 | 92.7T | 2009 | 137.35T | 2025 | 250.99T |
| 1994 | 97.63T | 2010 | 152.59T | 2026 | 261.53T |
| 1995 | 104.29T | 2011 | 159.13T | | |