Show data table
| 1980 | 2.7B | 1996 | 3.72B | 2012 | 14.8B |
| 1981 | 2.24B | 1997 | 3.38B | 2013 | 15.8B |
| 1982 | 1.68B | 1998 | 3.87B | 2014 | 17.1B |
| 1983 | 1.5B | 1999 | 4.07B | 2015 | 15.6B |
| 1984 | 1.39B | 2000 | 3.48B | 2016 | 16.8B |
| 1985 | 1.59B | 2001 | 4.05B | 2017 | 18.3B |
| 1986 | 2.13B | 2002 | 4.63B | 2018 | 20.4B |
| 1987 | 2.45B | 2003 | 5.52B | 2019 | 20.5B |
| 1988 | 2.71B | 2004 | 6.41B | 2020 | 20.8B |
| 1989 | 3.31B | 2005 | 7.38B | 2021 | 23.1B |
| 1990 | 3.25B | 2006 | 8.09B | 2022 | 22.7B |
| 1991 | 3.59B | 2007 | 9.67B | 2023 | 24.8B |
| 1992 | 3.69B | 2008 | 11.5B | 2024 | 26.8B |
| 1993 | 3.64B | 2009 | 11.9B | 2025 | 30.1B |
| 1994 | 2.71B | 2010 | 12.4B | 2026 | 33.8B |
| 1995 | 3.34B | 2011 | 15.5B | | |
Show data table
| 1980 | 571B | 1996 | 1.89T | 2012 | 7.56T |
| 1981 | 607B | 1997 | 1.96T | 2013 | 7.78T |
| 1982 | 552B | 1998 | 2.28T | 2014 | 8.44T |
| 1983 | 570B | 1999 | 2.5T | 2015 | 9.22T |
| 1984 | 606B | 2000 | 2.47T | 2016 | 9.94T |
| 1985 | 716B | 2001 | 2.97T | 2017 | 10.65T |
| 1986 | 736B | 2002 | 3.21T | 2018 | 11.34T |
| 1987 | 736B | 2003 | 3.2T | 2019 | 12.02T |
| 1988 | 808B | 2004 | 3.38T | 2020 | 11.94T |
| 1989 | 901B | 2005 | 3.89T | 2021 | 12.78T |
| 1990 | 884B | 2006 | 4.22T | 2022 | 14.1T |
| 1991 | 1.01T | 2007 | 4.63T | 2023 | 15.05T |
| 1992 | 974B | 2008 | 5.12T | 2024 | 16.23T |
| 1993 | 1.03T | 2009 | 5.61T | 2025 | 17.45T |
| 1994 | 1.47T | 2010 | 6.15T | 2026 | 18.83T |
| 1995 | 1.65T | 2011 | 7.29T | | |
Show data table
| 1980 | 3.09T | 1996 | 4.03T | 2012 | 7.88T |
| 1981 | 3.07T | 1997 | 4.29T | 2013 | 8.14T |
| 1982 | 2.96T | 1998 | 4.53T | 2014 | 8.67T |
| 1983 | 2.97T | 1999 | 4.64T | 2015 | 9.21T |
| 1984 | 2.86T | 2000 | 4.56T | 2016 | 9.77T |
| 1985 | 3.13T | 2001 | 5.1T | 2017 | 10.29T |
| 1986 | 3.1T | 2002 | 5.48T | 2018 | 10.79T |
| 1987 | 3.09T | 2003 | 5.76T | 2019 | 11.33T |
| 1988 | 3.34T | 2004 | 5.6T | 2020 | 11.2T |
| 1989 | 3.44T | 2005 | 5.99T | 2021 | 11.55T |
| 1990 | 3.28T | 2006 | 6.29T | 2022 | 11.98T |
| 1991 | 3.67T | 2007 | 6.55T | 2023 | 12.54T |
| 1992 | 3.46T | 2008 | 6.86T | 2024 | 13.17T |
| 1993 | 3.65T | 2009 | 7.19T | 2025 | 13.81T |
| 1994 | 3.73T | 2010 | 7.62T | 2026 | 14.57T |
| 1995 | 3.79T | 2011 | 7.91T | | |