Show data table
| 1980 | 6.67B | 1996 | 7.76B | 2012 | 187B |
| 1981 | 7.37B | 1997 | 9.98B | 2013 | 199B |
| 1982 | 6.47B | 1998 | 8.49B | 2014 | 206B |
| 1983 | 5.51B | 1999 | 11.3B | 2015 | 162B |
| 1984 | 5.71B | 2000 | 18.1B | 2016 | 152B |
| 1985 | 5.34B | 2001 | 17.5B | 2017 | 161B |
| 1986 | 4.21B | 2002 | 19.3B | 2018 | 183B |
| 1987 | 4.44B | 2003 | 23.7B | 2019 | 176B |
| 1988 | 4.26B | 2004 | 30.7B | 2020 | 144B |
| 1989 | 4.5B | 2005 | 44.6B | 2021 | 180B |
| 1990 | 6.27B | 2006 | 58.6B | 2022 | 236B |
| 1991 | 5.58B | 2007 | 76B | 2023 | 217B |
| 1992 | 6.38B | 2008 | 113B | 2024 | 219B |
| 1993 | 5.8B | 2009 | 88.2B | 2025 | 221B |
| 1994 | 5.95B | 2010 | 120B | 2026 | 217B |
| 1995 | 6.86B | 2011 | 168B | | |
Show data table
| 1980 | 24.4B | 1996 | 28.2B | 2012 | 680B |
| 1981 | 26.8B | 1997 | 36.3B | 2013 | 723B |
| 1982 | 23.5B | 1998 | 30.9B | 2014 | 751B |
| 1983 | 20B | 1999 | 41B | 2015 | 589B |
| 1984 | 20.8B | 2000 | 65.8B | 2016 | 552B |
| 1985 | 19.4B | 2001 | 63.7B | 2017 | 586B |
| 1986 | 15.3B | 2002 | 70.4B | 2018 | 667B |
| 1987 | 16.2B | 2003 | 86.3B | 2019 | 642B |
| 1988 | 15.5B | 2004 | 112B | 2020 | 526B |
| 1989 | 16.4B | 2005 | 162B | 2021 | 654B |
| 1990 | 22.8B | 2006 | 213B | 2022 | 858B |
| 1991 | 20.3B | 2007 | 277B | 2023 | 791B |
| 1992 | 23.2B | 2008 | 410B | 2024 | 798B |
| 1993 | 21.1B | 2009 | 321B | 2025 | 805B |
| 1994 | 21.6B | 2010 | 436B | 2026 | 791B |
| 1995 | 25B | 2011 | 611B | | |
Show data table
| 1980 | 90.8B | 1996 | 86.6B | 2012 | 557B |
| 1981 | 87.3B | 1997 | 111B | 2013 | 588B |
| 1982 | 80.1B | 1998 | 122B | 2014 | 620B |
| 1983 | 75.9B | 1999 | 127B | 2015 | 649B |
| 1984 | 88B | 2000 | 135B | 2016 | 669B |
| 1985 | 76.5B | 2001 | 141B | 2017 | 659B |
| 1986 | 79.4B | 2002 | 151B | 2018 | 667B |
| 1987 | 80.1B | 2003 | 157B | 2019 | 672B |
| 1988 | 83.8B | 2004 | 187B | 2020 | 648B |
| 1989 | 88.3B | 2005 | 202B | 2021 | 659B |
| 1990 | 75.3B | 2006 | 259B | 2022 | 686B |
| 1991 | 74.2B | 2007 | 306B | 2023 | 697B |
| 1992 | 81.9B | 2008 | 359B | 2024 | 713B |
| 1993 | 81.2B | 2009 | 406B | 2025 | 733B |
| 1994 | 82.8B | 2010 | 478B | 2026 | 670B |
| 1995 | 83.1B | 2011 | 532B | | |