Show data table
| 1980 | 132M | 1996 | 324M | 2012 | 1.97B |
| 1981 | 143M | 1997 | 362M | 2013 | 2B |
| 1982 | 150M | 1998 | 398M | 2014 | 1.96B |
| 1983 | 162M | 1999 | 418M | 2015 | 2.16B |
| 1984 | 168M | 2000 | 454M | 2016 | 2.25B |
| 1985 | 174M | 2001 | 474M | 2017 | 2.46B |
| 1986 | 197M | 2002 | 517M | 2018 | 2.65B |
| 1987 | 238M | 2003 | 616M | 2019 | 2.62B |
| 1988 | 273M | 2004 | 700M | 2020 | 2.59B |
| 1989 | 272M | 2005 | 818M | 2021 | 2.62B |
| 1990 | 293M | 2006 | 876M | 2022 | 2.87B |
| 1991 | 254M | 2007 | 1.07B | 2023 | 2.92B |
| 1992 | 248M | 2008 | 1.36B | 2024 | 3.15B |
| 1993 | 260M | 2009 | 1.27B | 2025 | 3.47B |
| 1994 | 263M | 2010 | 1.53B | 2026 | 3.86B |
| 1995 | 308M | 2011 | 1.88B | | |
Show data table
| 1980 | 1.04B | 1996 | 11.1B | 2012 | 98.9B |
| 1981 | 1.24B | 1997 | 13B | 2013 | 110B |
| 1982 | 1.42B | 1998 | 15.3B | 2014 | 121B |
| 1983 | 1.64B | 1999 | 17.8B | 2015 | 134B |
| 1984 | 1.91B | 2000 | 19.8B | 2016 | 149B |
| 1985 | 2.15B | 2001 | 22B | 2017 | 164B |
| 1986 | 2.48B | 2002 | 25.3B | 2018 | 173B |
| 1987 | 3.09B | 2003 | 28.8B | 2019 | 185B |
| 1988 | 3.8B | 2004 | 31.8B | 2020 | 187B |
| 1989 | 4.42B | 2005 | 35.6B | 2021 | 193B |
| 1990 | 5.13B | 2006 | 40.3B | 2022 | 216B |
| 1991 | 5.77B | 2007 | 47.3B | 2023 | 238B |
| 1992 | 6.43B | 2008 | 54.6B | 2024 | 264B |
| 1993 | 7.22B | 2009 | 60.9B | 2025 | 293B |
| 1994 | 8.27B | 2010 | 71.3B | 2026 | 327B |
| 1995 | 9.68B | 2011 | 85.2B | | |
Show data table
| 1980 | 12B | 1996 | 39.1B | 2012 | 129B |
| 1981 | 13.6B | 1997 | 41.2B | 2013 | 134B |
| 1982 | 14.8B | 1998 | 43.7B | 2014 | 139B |
| 1983 | 15.8B | 1999 | 46.8B | 2015 | 148B |
| 1984 | 17.1B | 2000 | 50.1B | 2016 | 159B |
| 1985 | 17.8B | 2001 | 53.6B | 2017 | 167B |
| 1986 | 19.2B | 2002 | 58.7B | 2018 | 172B |
| 1987 | 23.1B | 2003 | 64B | 2019 | 180B |
| 1988 | 26.6B | 2004 | 68.1B | 2020 | 175B |
| 1989 | 28.2B | 2005 | 72.2B | 2021 | 170B |
| 1990 | 30.8B | 2006 | 76.8B | 2022 | 178B |
| 1991 | 32.3B | 2007 | 85.2B | 2023 | 186B |
| 1992 | 33B | 2008 | 93.7B | 2024 | 198B |
| 1993 | 34B | 2009 | 99.4B | 2025 | 212B |
| 1994 | 34.8B | 2010 | 110B | 2026 | 228B |
| 1995 | 36.9B | 2011 | 121B | | |