Tableau de données
| 1980 | 229 M | 1996 | 850 M | 2012 | 1,92 Md |
| 1981 | 238 M | 1997 | 873 M | 2013 | 2,04 Md |
| 1982 | 238 M | 1998 | 929 M | 2014 | 2,14 Md |
| 1983 | 251 M | 1999 | 1 Md | 2015 | 2,19 Md |
| 1984 | 280 M | 2000 | 1,14 Md | 2016 | 2,24 Md |
| 1985 | 278 M | 2001 | 1,17 Md | 2017 | 2,27 Md |
| 1986 | 302 M | 2002 | 1,24 Md | 2018 | 2,29 Md |
| 1987 | 354 M | 2003 | 1,31 Md | 2019 | 2,38 Md |
| 1988 | 418 M | 2004 | 1,4 Md | 2020 | 2,05 Md |
| 1989 | 482 M | 2005 | 1,47 Md | 2021 | 2,43 Md |
| 1990 | 547 M | 2006 | 1,59 Md | 2022 | 2,85 Md |
| 1991 | 597 M | 2007 | 1,71 Md | 2023 | 3,05 Md |
| 1992 | 696 M | 2008 | 1,74 Md | 2024 | 3,2 Md |
| 1993 | 752 M | 2009 | 1,69 Md | 2025 | 3,33 Md |
| 1994 | 772 M | 2010 | 1,75 Md | 2026 | 3,45 Md |
| 1995 | 819 M | 2011 | 1,83 Md | | |
Tableau de données
| 1980 | 457 M | 1996 | 1,7 Md | 2012 | 3,83 Md |
| 1981 | 476 M | 1997 | 1,75 Md | 2013 | 4,07 Md |
| 1982 | 476 M | 1998 | 1,86 Md | 2014 | 4,28 Md |
| 1983 | 502 M | 1999 | 2 Md | 2015 | 4,39 Md |
| 1984 | 560 M | 2000 | 2,28 Md | 2016 | 4,48 Md |
| 1985 | 555 M | 2001 | 2,34 Md | 2017 | 4,53 Md |
| 1986 | 605 M | 2002 | 2,49 Md | 2018 | 4,57 Md |
| 1987 | 707 M | 2003 | 2,62 Md | 2019 | 4,76 Md |
| 1988 | 836 M | 2004 | 2,8 Md | 2020 | 4,1 Md |
| 1989 | 964 M | 2005 | 2,95 Md | 2021 | 4,86 Md |
| 1990 | 1,09 Md | 2006 | 3,18 Md | 2022 | 5,69 Md |
| 1991 | 1,19 Md | 2007 | 3,41 Md | 2023 | 6,11 Md |
| 1992 | 1,39 Md | 2008 | 3,48 Md | 2024 | 6,41 Md |
| 1993 | 1,51 Md | 2009 | 3,38 Md | 2025 | 6,65 Md |
| 1994 | 1,54 Md | 2010 | 3,5 Md | 2026 | 6,9 Md |
| 1995 | 1,64 Md | 2011 | 3,66 Md | | |
Tableau de données
| 1980 | 751 M | 1996 | 2,06 Md | 2012 | 3,96 Md |
| 1981 | 752 M | 1997 | 2,14 Md | 2013 | 4,12 Md |
| 1982 | 696 M | 1998 | 2,23 Md | 2014 | 4,28 Md |
| 1983 | 738 M | 1999 | 2,44 Md | 2015 | 4,4 Md |
| 1984 | 821 M | 2000 | 2,73 Md | 2016 | 4,39 Md |
| 1985 | 810 M | 2001 | 2,87 Md | 2017 | 4,31 Md |
| 1986 | 869 M | 2002 | 3,02 Md | 2018 | 4,35 Md |
| 1987 | 1,06 Md | 2003 | 3,32 Md | 2019 | 4,53 Md |
| 1988 | 1,18 Md | 2004 | 3,48 Md | 2020 | 3,92 Md |
| 1989 | 1,36 Md | 2005 | 3,55 Md | 2021 | 4,63 Md |
| 1990 | 1,51 Md | 2006 | 3,71 Md | 2022 | 5,05 Md |
| 1991 | 1,69 Md | 2007 | 3,84 Md | 2023 | 5,08 Md |
| 1992 | 1,9 Md | 2008 | 3,77 Md | 2024 | 5,26 Md |
| 1993 | 2,02 Md | 2009 | 3,76 Md | 2025 | 5,4 Md |
| 1994 | 2,02 Md | 2010 | 3,81 Md | 2026 | 5,52 Md |
| 1995 | 2,03 Md | 2011 | 3,81 Md | | |