Show data table
| 1980 | 13.4B | 1996 | 18.1B | 2012 | 56.4B |
| 1981 | 12.7B | 1997 | 18.3B | 2013 | 61.7B |
| 1982 | 12.2B | 1998 | 20.6B | 2014 | 68.4B |
| 1983 | 11.3B | 1999 | 18.6B | 2015 | 70.4B |
| 1984 | 11.7B | 2000 | 18.2B | 2016 | 74.8B |
| 1985 | 11.6B | 2001 | 18.7B | 2017 | 82B |
| 1986 | 13.8B | 2002 | 19B | 2018 | 92.2B |
| 1987 | 15.2B | 2003 | 21.4B | 2019 | 100B |
| 1988 | 15.7B | 2004 | 22.8B | 2020 | 101B |
| 1989 | 15.6B | 2005 | 26.3B | 2021 | 110B |
| 1990 | 16.2B | 2006 | 29.7B | 2022 | 115B |
| 1991 | 15.3B | 2007 | 36.7B | 2023 | 108B |
| 1992 | 15.1B | 2008 | 41.1B | 2024 | 119B |
| 1993 | 10.5B | 2009 | 42.3B | 2025 | 136B |
| 1994 | 12.5B | 2010 | 45.4B | 2026 | 147B |
| 1995 | 15.9B | 2011 | 46.6B | | |
Show data table
| 1980 | 99.8B | 1996 | 1.03T | 2012 | 4.77T |
| 1981 | 115B | 1997 | 1.15T | 2013 | 5.31T |
| 1982 | 133B | 1998 | 1.25T | 2014 | 6T |
| 1983 | 150B | 1999 | 1.31T | 2015 | 6.88T |
| 1984 | 169B | 2000 | 1.39T | 2016 | 7.59T |
| 1985 | 191B | 2001 | 1.47T | 2017 | 8.48T |
| 1986 | 224B | 2002 | 1.5T | 2018 | 9.34T |
| 1987 | 250B | 2003 | 1.62T | 2019 | 10.24T |
| 1988 | 279B | 2004 | 1.8T | 2020 | 10.72T |
| 1989 | 321B | 2005 | 1.99T | 2021 | 12.03T |
| 1990 | 371B | 2006 | 2.14T | 2022 | 13.49T |
| 1991 | 421B | 2007 | 2.47T | 2023 | 15.03T |
| 1992 | 485B | 2008 | 2.84T | 2024 | 16.22T |
| 1993 | 608B | 2009 | 3.28T | 2025 | 17.64T |
| 1994 | 703B | 2010 | 3.6T | 2026 | 19.5T |
| 1995 | 818B | 2011 | 4.16T | | |
Show data table
| 1980 | 2.11T | 1996 | 3.63T | 2012 | 6.37T |
| 1981 | 2.2T | 1997 | 3.64T | 2013 | 6.61T |
| 1982 | 2.31T | 1998 | 3.75T | 2014 | 6.94T |
| 1983 | 2.35T | 1999 | 3.84T | 2015 | 7.29T |
| 1984 | 2.38T | 2000 | 3.85T | 2016 | 7.59T |
| 1985 | 2.48T | 2001 | 4T | 2017 | 7.88T |
| 1986 | 2.65T | 2002 | 4.02T | 2018 | 8.33T |
| 1987 | 2.81T | 2003 | 4.14T | 2019 | 8.76T |
| 1988 | 2.98T | 2004 | 4.33T | 2020 | 8.73T |
| 1989 | 3.12T | 2005 | 4.58T | 2021 | 9.4T |
| 1990 | 3.24T | 2006 | 4.85T | 2022 | 9.85T |
| 1991 | 3.29T | 2007 | 5.18T | 2023 | 10.42T |
| 1992 | 3.25T | 2008 | 5.19T | 2024 | 10.91T |
| 1993 | 3.25T | 2009 | 5.36T | 2025 | 11.44T |
| 1994 | 3.33T | 2010 | 5.79T | 2026 | 11.95T |
| 1995 | 3.47T | 2011 | 6.09T | | |