Show data table
| 1980 | 4.62B | 1996 | 4.03B | 2012 | 16.7B |
| 1981 | 3.59B | 1997 | 4.87B | 2013 | 17.2B |
| 1982 | 3.66B | 1998 | 5.55B | 2014 | 18B |
| 1983 | 3.28B | 1999 | 6.29B | 2015 | 16.2B |
| 1984 | 3.42B | 2000 | 5.93B | 2016 | 12.1B |
| 1985 | 4.52B | 2001 | 5.65B | 2017 | 13.3B |
| 1986 | 5.3B | 2002 | 5.95B | 2018 | 15B |
| 1987 | 2.4B | 2003 | 6.58B | 2019 | 15.5B |
| 1988 | 2.1B | 2004 | 7.94B | 2020 | 14.2B |
| 1989 | 2.2B | 2005 | 8.87B | 2021 | 16.2B |
| 1990 | 3.53B | 2006 | 9.51B | 2022 | 18.9B |
| 1991 | 3.86B | 2007 | 10.8B | 2023 | 20.9B |
| 1992 | 2.8B | 2008 | 12.9B | 2024 | 22.7B |
| 1993 | 2.88B | 2009 | 12.3B | 2025 | 22.3B |
| 1994 | 2.96B | 2010 | 11.4B | 2026 | 23.3B |
| 1995 | 3.06B | 2011 | 14.6B | | |
Show data table
| 1980 | 161M | 1996 | 45.5B | 2012 | 473B |
| 1981 | 126M | 1997 | 56.3B | 2013 | 518B |
| 1982 | 138M | 1998 | 65.9B | 2014 | 564B |
| 1983 | 132M | 1999 | 80.3B | 2015 | 648B |
| 1984 | 145M | 2000 | 90.3B | 2016 | 761B |
| 1985 | 195M | 2001 | 117B | 2017 | 843B |
| 1986 | 215M | 2002 | 141B | 2018 | 906B |
| 1987 | 693M | 2003 | 157B | 2019 | 970B |
| 1988 | 1.11B | 2004 | 179B | 2020 | 989B |
| 1989 | 1.75B | 2005 | 205B | 2021 | 1.06T |
| 1990 | 3.29B | 2006 | 242B | 2022 | 1.21T |
| 1991 | 5.53B | 2007 | 279B | 2023 | 1.34T |
| 1992 | 7.04B | 2008 | 314B | 2024 | 1.45T |
| 1993 | 11.2B | 2009 | 337B | 2025 | 1.43T |
| 1994 | 17.9B | 2010 | 388B | 2026 | 1.51T |
| 1995 | 27.6B | 2011 | 425B | | |
Show data table
| 1980 | 148B | 1996 | 197B | 2012 | 692B |
| 1981 | 155B | 1997 | 220B | 2013 | 737B |
| 1982 | 144B | 1998 | 243B | 2014 | 794B |
| 1983 | 122B | 1999 | 272B | 2015 | 853B |
| 1984 | 114B | 2000 | 274B | 2016 | 893B |
| 1985 | 115B | 2001 | 309B | 2017 | 916B |
| 1986 | 112B | 2002 | 339B | 2018 | 948B |
| 1987 | 129B | 2003 | 364B | 2019 | 970B |
| 1988 | 139B | 2004 | 394B | 2020 | 958B |
| 1989 | 148B | 2005 | 418B | 2021 | 981B |
| 1990 | 150B | 2006 | 460B | 2022 | 1.02T |
| 1991 | 160B | 2007 | 495B | 2023 | 1.08T |
| 1992 | 148B | 2008 | 529B | 2024 | 1.1T |
| 1993 | 164B | 2009 | 561B | 2025 | 1.1T |
| 1994 | 174B | 2010 | 598B | 2026 | 1.1T |
| 1995 | 178B | 2011 | 641B | | |