Tableau de données
| 1980 | 132 M | 1996 | 679 M | 2012 | 1,37 Md |
| 1981 | 149 M | 1997 | 734 M | 2013 | 1,33 Md |
| 1982 | 166 M | 1998 | 790 M | 2014 | 1,38 Md |
| 1983 | 185 M | 1999 | 836 M | 2015 | 1,44 Md |
| 1984 | 212 M | 2000 | 901 M | 2016 | 1,49 Md |
| 1985 | 246 M | 2001 | 878 M | 2017 | 1,54 Md |
| 1986 | 298 M | 2002 | 898 M | 2018 | 1,66 Md |
| 1987 | 347 M | 2003 | 948 M | 2019 | 1,73 Md |
| 1988 | 411 M | 2004 | 1,03 Md | 2020 | 1,41 Md |
| 1989 | 455 M | 2005 | 1,14 Md | 2021 | 1,6 Md |
| 1990 | 479 M | 2006 | 1,3 Md | 2022 | 1,86 Md |
| 1991 | 504 M | 2007 | 1,49 Md | 2023 | 2,05 Md |
| 1992 | 525 M | 2008 | 1,56 Md | 2024 | 2,16 Md |
| 1993 | 566 M | 2009 | 1,39 Md | 2025 | 2,27 Md |
| 1994 | 625 M | 2010 | 1,3 Md | 2026 | 2,39 Md |
| 1995 | 616 M | 2011 | 1,29 Md | | |
Tableau de données
| 1980 | 358 M | 1996 | 1,83 Md | 2012 | 3,69 Md |
| 1981 | 403 M | 1997 | 1,98 Md | 2013 | 3,58 Md |
| 1982 | 449 M | 1998 | 2,13 Md | 2014 | 3,72 Md |
| 1983 | 499 M | 1999 | 2,26 Md | 2015 | 3,88 Md |
| 1984 | 573 M | 2000 | 2,43 Md | 2016 | 4,02 Md |
| 1985 | 665 M | 2001 | 2,37 Md | 2017 | 4,14 Md |
| 1986 | 803 M | 2002 | 2,43 Md | 2018 | 4,49 Md |
| 1987 | 937 M | 2003 | 2,56 Md | 2019 | 4,66 Md |
| 1988 | 1,11 Md | 2004 | 2,77 Md | 2020 | 3,81 Md |
| 1989 | 1,23 Md | 2005 | 3,09 Md | 2021 | 4,33 Md |
| 1990 | 1,29 Md | 2006 | 3,52 Md | 2022 | 5,01 Md |
| 1991 | 1,36 Md | 2007 | 4,02 Md | 2023 | 5,55 Md |
| 1992 | 1,42 Md | 2008 | 4,21 Md | 2024 | 5,84 Md |
| 1993 | 1,53 Md | 2009 | 3,74 Md | 2025 | 6,14 Md |
| 1994 | 1,69 Md | 2010 | 3,51 Md | 2026 | 6,44 Md |
| 1995 | 1,66 Md | 2011 | 3,48 Md | | |
Tableau de données
| 1980 | 1,29 Md | 1996 | 2,69 Md | 2012 | 3,82 Md |
| 1981 | 1,34 Md | 1997 | 2,84 Md | 2013 | 3,79 Md |
| 1982 | 1,34 Md | 1998 | 2,97 Md | 2014 | 3,88 Md |
| 1983 | 1,41 Md | 1999 | 3,08 Md | 2015 | 3,93 Md |
| 1984 | 1,56 Md | 2000 | 3,27 Md | 2016 | 4,09 Md |
| 1985 | 1,67 Md | 2001 | 3,12 Md | 2017 | 4,2 Md |
| 1986 | 1,87 Md | 2002 | 3,15 Md | 2018 | 4,49 Md |
| 1987 | 1,99 Md | 2003 | 3,35 Md | 2019 | 4,63 Md |
| 1988 | 2,09 Md | 2004 | 3,54 Md | 2020 | 3,76 Md |
| 1989 | 2,2 Md | 2005 | 3,77 Md | 2021 | 4,06 Md |
| 1990 | 2,27 Md | 2006 | 4,25 Md | 2022 | 4,41 Md |
| 1991 | 2,32 Md | 2007 | 4,64 Md | 2023 | 4,58 Md |
| 1992 | 2,35 Md | 2008 | 4,64 Md | 2024 | 4,69 Md |
| 1993 | 2,47 Md | 2009 | 4,09 Md | 2025 | 4,84 Md |
| 1994 | 2,64 Md | 2010 | 3,77 Md | 2026 | 4,96 Md |
| 1995 | 2,52 Md | 2011 | 3,69 Md | | |