Show data table
| 1980 | 2.17B | 1996 | 2.84B | 2012 | 17.7B |
| 1981 | 1.78B | 1997 | 2.57B | 2013 | 18B |
| 1982 | 1.55B | 1998 | 2.24B | 2014 | 17.9B |
| 1983 | 1.41B | 1999 | 2.65B | 2015 | 11.9B |
| 1984 | 1.29B | 2000 | 3.62B | 2016 | 10.9B |
| 1985 | 1.33B | 2001 | 3.04B | 2017 | 11.8B |
| 1986 | 1.82B | 2002 | 3.33B | 2018 | 14.8B |
| 1987 | 2.21B | 2003 | 3.86B | 2019 | 14B |
| 1988 | 2.35B | 2004 | 5.1B | 2020 | 11.5B |
| 1989 | 2.48B | 2005 | 6.65B | 2021 | 13.4B |
| 1990 | 2.91B | 2006 | 8.07B | 2022 | 14B |
| 1991 | 3.04B | 2007 | 8.78B | 2023 | 14.2B |
| 1992 | 3.28B | 2008 | 11.6B | 2024 | 14.8B |
| 1993 | 3B | 2009 | 9.71B | 2025 | 15.6B |
| 1994 | 2.07B | 2010 | 13.2B | 2026 | 17B |
| 1995 | 2.46B | 2011 | 15.7B | | |
Show data table
| 1980 | 457B | 1996 | 1.45T | 2012 | 9.03T |
| 1981 | 482B | 1997 | 1.5T | 2013 | 8.87T |
| 1982 | 509B | 1998 | 1.32T | 2014 | 8.84T |
| 1983 | 536B | 1999 | 1.63T | 2015 | 7.03T |
| 1984 | 565B | 2000 | 2.58T | 2016 | 6.48T |
| 1985 | 596B | 2001 | 2.23T | 2017 | 6.87T |
| 1986 | 628B | 2002 | 2.32T | 2018 | 8.21T |
| 1987 | 663B | 2003 | 2.24T | 2019 | 8.19T |
| 1988 | 699B | 2004 | 2.69T | 2020 | 6.6T |
| 1989 | 791B | 2005 | 3.51T | 2021 | 7.42T |
| 1990 | 792B | 2006 | 4.22T | 2022 | 8.69T |
| 1991 | 856B | 2007 | 4.2T | 2023 | 8.59T |
| 1992 | 868B | 2008 | 5.2T | 2024 | 8.96T |
| 1993 | 851B | 2009 | 4.57T | 2025 | 9.06T |
| 1994 | 1.15T | 2010 | 6.51T | 2026 | 9.48T |
| 1995 | 1.23T | 2011 | 7.38T | | |
Show data table
| 1980 | 1.41T | 1996 | 2.87T | 2012 | 5.18T |
| 1981 | 1.44T | 1997 | 2.84T | 2013 | 5.15T |
| 1982 | 1.48T | 1998 | 3.1T | 2014 | 5.49T |
| 1983 | 1.51T | 1999 | 2.98T | 2015 | 5.3T |
| 1984 | 1.55T | 2000 | 3.33T | 2016 | 5.03T |
| 1985 | 1.58T | 2001 | 3.17T | 2017 | 4.75T |
| 1986 | 1.62T | 2002 | 3.2T | 2018 | 4.64T |
| 1987 | 1.66T | 2003 | 3.22T | 2019 | 4.69T |
| 1988 | 2.02T | 2004 | 3.21T | 2020 | 4.4T |
| 1989 | 2.45T | 2005 | 3.51T | 2021 | 4.45T |
| 1990 | 2.48T | 2006 | 3.79T | 2022 | 4.53T |
| 1991 | 2.56T | 2007 | 3.54T | 2023 | 4.62T |
| 1992 | 2.67T | 2008 | 3.76T | 2024 | 4.71T |
| 1993 | 2.7T | 2009 | 4.2T | 2025 | 4.82T |
| 1994 | 2.67T | 2010 | 4.61T | 2026 | 4.96T |
| 1995 | 2.77T | 2011 | 4.71T | | |