Show data table
| 1980 | 89.4B | 1996 | 163B | 2012 | 434B |
| 1981 | 93.2B | 1997 | 169B | 2013 | 401B |
| 1982 | 85.9B | 1998 | 153B | 2014 | 381B |
| 1983 | 96.2B | 1999 | 151B | 2015 | 347B |
| 1984 | 84.8B | 2000 | 152B | 2016 | 323B |
| 1985 | 64.5B | 2001 | 136B | 2017 | 381B |
| 1986 | 73.4B | 2002 | 129B | 2018 | 405B |
| 1987 | 96.5B | 2003 | 197B | 2019 | 389B |
| 1988 | 104B | 2004 | 256B | 2020 | 338B |
| 1989 | 108B | 2005 | 289B | 2021 | 420B |
| 1990 | 126B | 2006 | 304B | 2022 | 407B |
| 1991 | 135B | 2007 | 333B | 2023 | 381B |
| 1992 | 147B | 2008 | 316B | 2024 | 401B |
| 1993 | 147B | 2009 | 331B | 2025 | 427B |
| 1994 | 154B | 2010 | 417B | 2026 | 480B |
| 1995 | 172B | 2011 | 459B | | |
Show data table
| 1980 | 69.6B | 1996 | 702B | 2012 | 3.57T |
| 1981 | 81.7B | 1997 | 779B | 2013 | 3.87T |
| 1982 | 93.3B | 1998 | 846B | 2014 | 4.13T |
| 1983 | 107B | 1999 | 926B | 2015 | 4.42T |
| 1984 | 125B | 2000 | 1.05T | 2016 | 4.76T |
| 1985 | 144B | 2001 | 1.17T | 2017 | 5.08T |
| 1986 | 168B | 2002 | 1.36T | 2018 | 5.36T |
| 1987 | 197B | 2003 | 1.49T | 2019 | 5.63T |
| 1988 | 236B | 2004 | 1.65T | 2020 | 5.56T |
| 1989 | 283B | 2005 | 1.84T | 2021 | 6.21T |
| 1990 | 326B | 2006 | 2.06T | 2022 | 6.67T |
| 1991 | 373B | 2007 | 2.35T | 2023 | 7.04T |
| 1992 | 419B | 2008 | 2.61T | 2024 | 7.35T |
| 1993 | 481B | 2009 | 2.79T | 2025 | 7.64T |
| 1994 | 545B | 2010 | 3.06T | 2026 | 8.02T |
| 1995 | 623B | 2011 | 3.33T | | |
Show data table
| 1980 | 2.03T | 1996 | 2.57T | 2012 | 4.2T |
| 1981 | 2.14T | 1997 | 2.64T | 2013 | 4.3T |
| 1982 | 2.13T | 1998 | 2.65T | 2014 | 4.36T |
| 1983 | 2.09T | 1999 | 2.71T | 2015 | 4.42T |
| 1984 | 2.2T | 2000 | 2.83T | 2016 | 4.45T |
| 1985 | 2.17T | 2001 | 2.9T | 2017 | 4.5T |
| 1986 | 2.17T | 2002 | 3.01T | 2018 | 4.57T |
| 1987 | 2.22T | 2003 | 3.1T | 2019 | 4.58T |
| 1988 | 2.31T | 2004 | 3.24T | 2020 | 4.3T |
| 1989 | 2.37T | 2005 | 3.41T | 2021 | 4.51T |
| 1990 | 2.36T | 2006 | 3.6T | 2022 | 4.6T |
| 1991 | 2.34T | 2007 | 3.8T | 2023 | 4.64T |
| 1992 | 2.29T | 2008 | 3.92T | 2024 | 4.66T |
| 1993 | 2.32T | 2009 | 3.86T | 2025 | 4.72T |
| 1994 | 2.39T | 2010 | 3.97T | 2026 | 4.77T |
| 1995 | 2.46T | 2011 | 4.1T | | |