Show data table
| 1980 | 26.8B | 1996 | 110B | 2012 | 319B |
| 1981 | 27.3B | 1997 | 109B | 2013 | 328B |
| 1982 | 29.3B | 1998 | 78.6B | 2014 | 343B |
| 1983 | 32.7B | 1999 | 86.2B | 2015 | 301B |
| 1984 | 37.1B | 2000 | 102B | 2016 | 301B |
| 1985 | 34.1B | 2001 | 101B | 2017 | 319B |
| 1986 | 30.3B | 2002 | 110B | 2018 | 359B |
| 1987 | 34.5B | 2003 | 120B | 2019 | 365B |
| 1988 | 37.8B | 2004 | 136B | 2020 | 337B |
| 1989 | 41.7B | 2005 | 150B | 2021 | 374B |
| 1990 | 47.2B | 2006 | 170B | 2022 | 408B |
| 1991 | 53.5B | 2007 | 203B | 2023 | 400B |
| 1992 | 64.4B | 2008 | 242B | 2024 | 422B |
| 1993 | 72.9B | 2009 | 212B | 2025 | 472B |
| 1994 | 81.2B | 2010 | 259B | 2026 | 516B |
| 1995 | 96.6B | 2011 | 302B | | |
Show data table
| 1980 | 58.2B | 1996 | 276B | 2012 | 985B |
| 1981 | 62.9B | 1997 | 307B | 2013 | 1.03T |
| 1982 | 68.4B | 1998 | 308B | 2014 | 1.12T |
| 1983 | 76B | 1999 | 328B | 2015 | 1.18T |
| 1984 | 86.9B | 2000 | 388B | 2016 | 1.25T |
| 1985 | 84.6B | 2001 | 384B | 2017 | 1.37T |
| 1986 | 78.2B | 2002 | 417B | 2018 | 1.45T |
| 1987 | 87B | 2003 | 456B | 2019 | 1.51T |
| 1988 | 99.1B | 2004 | 516B | 2020 | 1.42T |
| 1989 | 113B | 2005 | 569B | 2021 | 1.55T |
| 1990 | 128B | 2006 | 625B | 2022 | 1.79T |
| 1991 | 147B | 2007 | 697B | 2023 | 1.82T |
| 1992 | 164B | 2008 | 806B | 2024 | 1.93T |
| 1993 | 188B | 2009 | 747B | 2025 | 2.02T |
| 1994 | 213B | 2010 | 833B | 2026 | 2.18T |
| 1995 | 242B | 2011 | 925B | | |
Show data table
| 1980 | 163B | 1996 | 507B | 2012 | 1.01T |
| 1981 | 175B | 1997 | 544B | 2013 | 1.06T |
| 1982 | 185B | 1998 | 504B | 2014 | 1.12T |
| 1983 | 197B | 1999 | 535B | 2015 | 1.18T |
| 1984 | 212B | 2000 | 581B | 2016 | 1.23T |
| 1985 | 210B | 2001 | 584B | 2017 | 1.3T |
| 1986 | 213B | 2002 | 615B | 2018 | 1.36T |
| 1987 | 224B | 2003 | 651B | 2019 | 1.42T |
| 1988 | 246B | 2004 | 695B | 2020 | 1.35T |
| 1989 | 269B | 2005 | 730B | 2021 | 1.39T |
| 1990 | 293B | 2006 | 771B | 2022 | 1.52T |
| 1991 | 321B | 2007 | 819B | 2023 | 1.57T |
| 1992 | 349B | 2008 | 859B | 2024 | 1.65T |
| 1993 | 384B | 2009 | 846B | 2025 | 1.74T |
| 1994 | 419B | 2010 | 909B | 2026 | 1.82T |
| 1995 | 461B | 2011 | 957B | | |