Show data table
| 1980 | 3.53B | 1996 | 2.4B | 2012 | 9.41B |
| 1981 | 3.06B | 1997 | 2.29B | 2013 | 10.2B |
| 1982 | 2.84B | 1998 | 2.64B | 2014 | 10.8B |
| 1983 | 2.54B | 1999 | 2.53B | 2015 | 9.68B |
| 1984 | 2.06B | 2000 | 2.24B | 2016 | 10.4B |
| 1985 | 2.03B | 2001 | 2.44B | 2017 | 11.2B |
| 1986 | 2.68B | 2002 | 2.77B | 2018 | 12.8B |
| 1987 | 3.14B | 2003 | 3.38B | 2019 | 12.9B |
| 1988 | 3.21B | 2004 | 3.75B | 2020 | 13.8B |
| 1989 | 3.07B | 2005 | 4.37B | 2021 | 14.9B |
| 1990 | 3.49B | 2006 | 4.74B | 2022 | 15.5B |
| 1991 | 3.27B | 2007 | 5.72B | 2023 | 16.8B |
| 1992 | 3.37B | 2008 | 7.28B | 2024 | 19.9B |
| 1993 | 3.04B | 2009 | 7.32B | 2025 | 21.8B |
| 1994 | 1.94B | 2010 | 7.84B | 2026 | 24.8B |
| 1995 | 2.3B | 2011 | 8.75B | | |
Show data table
| 1980 | 746B | 1996 | 1.23T | 2012 | 4.8T |
| 1981 | 830B | 1997 | 1.33T | 2013 | 5.04T |
| 1982 | 933B | 1998 | 1.55T | 2014 | 5.35T |
| 1983 | 967B | 1999 | 1.56T | 2015 | 5.72T |
| 1984 | 899B | 2000 | 1.59T | 2016 | 6.14T |
| 1985 | 911B | 2001 | 1.79T | 2017 | 6.49T |
| 1986 | 928B | 2002 | 1.92T | 2018 | 7.11T |
| 1987 | 945B | 2003 | 1.96T | 2019 | 7.57T |
| 1988 | 956B | 2004 | 1.98T | 2020 | 7.91T |
| 1989 | 979B | 2005 | 2.3T | 2021 | 8.27T |
| 1990 | 950B | 2006 | 2.48T | 2022 | 9.62T |
| 1991 | 923B | 2007 | 2.74T | 2023 | 10.19T |
| 1992 | 893B | 2008 | 3.25T | 2024 | 12.04T |
| 1993 | 861B | 2009 | 3.45T | 2025 | 12.68T |
| 1994 | 1.07T | 2010 | 3.88T | 2026 | 13.81T |
| 1995 | 1.15T | 2011 | 4.13T | | |
Show data table
| 1980 | 2.29T | 1996 | 2.43T | 2012 | 4.88T |
| 1981 | 2.29T | 1997 | 2.47T | 2013 | 5.14T |
| 1982 | 2.34T | 1998 | 2.71T | 2014 | 5.48T |
| 1983 | 2.25T | 1999 | 2.71T | 2015 | 5.73T |
| 1984 | 1.87T | 2000 | 2.67T | 2016 | 6.05T |
| 1985 | 2.01T | 2001 | 2.87T | 2017 | 6.36T |
| 1986 | 2.14T | 2002 | 3.01T | 2018 | 6.8T |
| 1987 | 2.14T | 2003 | 3.07T | 2019 | 7.22T |
| 1988 | 2.29T | 2004 | 3.09T | 2020 | 7.48T |
| 1989 | 2.31T | 2005 | 3.31T | 2021 | 7.58T |
| 1990 | 2.28T | 2006 | 3.51T | 2022 | 8.48T |
| 1991 | 2.27T | 2007 | 3.62T | 2023 | 8.68T |
| 1992 | 2.32T | 2008 | 3.9T | 2024 | 9.57T |
| 1993 | 2.33T | 2009 | 3.97T | 2025 | 10.23T |
| 1994 | 2.37T | 2010 | 4.32T | 2026 | 10.92T |
| 1995 | 2.43T | 2011 | 4.42T | | |