Show data table
| 1980 | 2.39B | 1996 | 2.91B | 2012 | 12.6B |
| 1981 | 2.08B | 1997 | 2.75B | 2013 | 13.4B |
| 1982 | 1.93B | 1998 | 3.16B | 2014 | 13.9B |
| 1983 | 1.77B | 1999 | 3.39B | 2015 | 11.8B |
| 1984 | 1.58B | 2000 | 2.96B | 2016 | 12.8B |
| 1985 | 1.75B | 2001 | 3.19B | 2017 | 14.1B |
| 1986 | 2.29B | 2002 | 3.62B | 2018 | 15.9B |
| 1987 | 2.67B | 2003 | 4.74B | 2019 | 16.1B |
| 1988 | 2.94B | 2004 | 5.45B | 2020 | 17.8B |
| 1989 | 2.94B | 2005 | 6.15B | 2021 | 19.7B |
| 1990 | 3.49B | 2006 | 6.55B | 2022 | 18.7B |
| 1991 | 3.53B | 2007 | 7.63B | 2023 | 20.1B |
| 1992 | 3.78B | 2008 | 9.45B | 2024 | 23.1B |
| 1993 | 3.6B | 2009 | 9.44B | 2025 | 27.1B |
| 1994 | 2.16B | 2010 | 10.1B | 2026 | 32.5B |
| 1995 | 2.68B | 2011 | 12.1B | | |
Show data table
| 1980 | 504B | 1996 | 1.49T | 2012 | 6.41T |
| 1981 | 564B | 1997 | 1.61T | 2013 | 6.64T |
| 1982 | 635B | 1998 | 1.86T | 2014 | 6.88T |
| 1983 | 673B | 1999 | 2.09T | 2015 | 7T |
| 1984 | 690B | 2000 | 2.11T | 2016 | 7.6T |
| 1985 | 784B | 2001 | 2.34T | 2017 | 8.19T |
| 1986 | 793B | 2002 | 2.51T | 2018 | 8.84T |
| 1987 | 801B | 2003 | 2.75T | 2019 | 9.43T |
| 1988 | 876B | 2004 | 2.87T | 2020 | 10.25T |
| 1989 | 938B | 2005 | 3.24T | 2021 | 10.92T |
| 1990 | 950B | 2006 | 3.42T | 2022 | 11.62T |
| 1991 | 995B | 2007 | 3.65T | 2023 | 12.2T |
| 1992 | 999B | 2008 | 4.22T | 2024 | 14.02T |
| 1993 | 1.02T | 2009 | 4.44T | 2025 | 15.76T |
| 1994 | 1.18T | 2010 | 5T | 2026 | 18.09T |
| 1995 | 1.34T | 2011 | 5.69T | | |
Show data table
| 1980 | 1.34T | 1996 | 2.42T | 2012 | 6.1T |
| 1981 | 1.37T | 1997 | 2.57T | 2013 | 6.45T |
| 1982 | 1.39T | 1998 | 2.76T | 2014 | 6.73T |
| 1983 | 1.38T | 1999 | 2.96T | 2015 | 7T |
| 1984 | 1.4T | 2000 | 3.02T | 2016 | 7.41T |
| 1985 | 1.56T | 2001 | 3.22T | 2017 | 7.87T |
| 1986 | 1.68T | 2002 | 3.36T | 2018 | 8.39T |
| 1987 | 1.68T | 2003 | 3.62T | 2019 | 8.89T |
| 1988 | 1.77T | 2004 | 3.78T | 2020 | 9.06T |
| 1989 | 1.81T | 2005 | 4.11T | 2021 | 9.69T |
| 1990 | 1.8T | 2006 | 4.37T | 2022 | 9.85T |
| 1991 | 1.96T | 2007 | 4.55T | 2023 | 10.15T |
| 1992 | 1.97T | 2008 | 4.81T | 2024 | 10.63T |
| 1993 | 2.04T | 2009 | 4.95T | 2025 | 11.17T |
| 1994 | 2.06T | 2010 | 5.37T | 2026 | 11.71T |
| 1995 | 2.18T | 2011 | 5.73T | | |