Show data table
| 1980 | 276B | 1996 | 631B | 2012 | 1.83T |
| 1981 | 307B | 1997 | 655B | 2013 | 1.85T |
| 1982 | 315B | 1998 | 634B | 2014 | 1.81T |
| 1983 | 342B | 1999 | 678B | 2015 | 1.56T |
| 1984 | 357B | 2000 | 745B | 2016 | 1.53T |
| 1985 | 366B | 2001 | 739B | 2017 | 1.65T |
| 1986 | 379B | 2002 | 760B | 2018 | 1.73T |
| 1987 | 433B | 2003 | 896B | 2019 | 1.74T |
| 1988 | 509B | 2004 | 1.03T | 2020 | 1.66T |
| 1989 | 567B | 2005 | 1.17T | 2021 | 2.02T |
| 1990 | 596B | 2006 | 1.32T | 2022 | 2.2T |
| 1991 | 613B | 2007 | 1.47T | 2023 | 2.2T |
| 1992 | 594B | 2008 | 1.55T | 2024 | 2.27T |
| 1993 | 579B | 2009 | 1.38T | 2025 | 2.32T |
| 1994 | 580B | 2010 | 1.62T | 2026 | 2.51T |
| 1995 | 606B | 2011 | 1.79T | | |
Show data table
| 1980 | 323B | 1996 | 860B | 2012 | 1.83T |
| 1981 | 368B | 1997 | 907B | 2013 | 1.9T |
| 1982 | 388B | 1998 | 941B | 2014 | 1.99T |
| 1983 | 421B | 1999 | 1.01T | 2015 | 1.99T |
| 1984 | 462B | 2000 | 1.11T | 2016 | 2.03T |
| 1985 | 500B | 2001 | 1.14T | 2017 | 2.14T |
| 1986 | 527B | 2002 | 1.19T | 2018 | 2.24T |
| 1987 | 574B | 2003 | 1.25T | 2019 | 2.31T |
| 1988 | 627B | 2004 | 1.34T | 2020 | 2.22T |
| 1989 | 672B | 2005 | 1.42T | 2021 | 2.54T |
| 1990 | 696B | 2006 | 1.5T | 2022 | 2.86T |
| 1991 | 702B | 2007 | 1.58T | 2023 | 2.97T |
| 1992 | 718B | 2008 | 1.66T | 2024 | 3.11T |
| 1993 | 747B | 2009 | 1.57T | 2025 | 3.24T |
| 1994 | 792B | 2010 | 1.67T | 2026 | 3.42T |
| 1995 | 832B | 2011 | 1.77T | | |
Show data table
| 1980 | 894B | 1996 | 1.28T | 2012 | 1.94T |
| 1981 | 925B | 1997 | 1.34T | 2013 | 1.99T |
| 1982 | 896B | 1998 | 1.39T | 2014 | 2.04T |
| 1983 | 919B | 1999 | 1.46T | 2015 | 2.06T |
| 1984 | 973B | 2000 | 1.54T | 2016 | 2.08T |
| 1985 | 1.02T | 2001 | 1.57T | 2017 | 2.14T |
| 1986 | 1.04T | 2002 | 1.61T | 2018 | 2.2T |
| 1987 | 1.08T | 2003 | 1.64T | 2019 | 2.24T |
| 1988 | 1.13T | 2004 | 1.69T | 2020 | 2.13T |
| 1989 | 1.16T | 2005 | 1.75T | 2021 | 2.26T |
| 1990 | 1.16T | 2006 | 1.79T | 2022 | 2.36T |
| 1991 | 1.14T | 2007 | 1.83T | 2023 | 2.41T |
| 1992 | 1.15T | 2008 | 1.85T | 2024 | 2.46T |
| 1993 | 1.18T | 2009 | 1.79T | 2025 | 2.5T |
| 1994 | 1.23T | 2010 | 1.85T | 2026 | 2.54T |
| 1995 | 1.26T | 2011 | 1.91T | | |