Tableau de données
| 1980 | 170 M | 1996 | 788 M | 2012 | 1,6 Md |
| 1981 | 194 M | 1997 | 805 M | 2013 | 1,66 Md |
| 1982 | 183 M | 1998 | 877 M | 2014 | 1,75 Md |
| 1983 | 197 M | 1999 | 921 M | 2015 | 1,81 Md |
| 1984 | 251 M | 2000 | 932 M | 2016 | 1,87 Md |
| 1985 | 284 M | 2001 | 892 M | 2017 | 2 Md |
| 1986 | 340 M | 2002 | 899 M | 2018 | 2,06 Md |
| 1987 | 375 M | 2003 | 987 M | 2019 | 2,1 Md |
| 1988 | 429 M | 2004 | 1,07 Md | 2020 | 1,51 Md |
| 1989 | 486 M | 2005 | 1,14 Md | 2021 | 1,87 Md |
| 1990 | 579 M | 2006 | 1,27 Md | 2022 | 2,33 Md |
| 1991 | 613 M | 2007 | 1,33 Md | 2023 | 2,4 Md |
| 1992 | 674 M | 2008 | 1,43 Md | 2024 | 2,57 Md |
| 1993 | 684 M | 2009 | 1,4 Md | 2025 | 2,65 Md |
| 1994 | 713 M | 2010 | 1,48 Md | 2026 | 2,77 Md |
| 1995 | 762 M | 2011 | 1,57 Md | | |
Tableau de données
| 1980 | 459 M | 1996 | 2,13 Md | 2012 | 4,32 Md |
| 1981 | 524 M | 1997 | 2,18 Md | 2013 | 4,48 Md |
| 1982 | 494 M | 1998 | 2,37 Md | 2014 | 4,72 Md |
| 1983 | 532 M | 1999 | 2,49 Md | 2015 | 4,88 Md |
| 1984 | 679 M | 2000 | 2,52 Md | 2016 | 5,05 Md |
| 1985 | 767 M | 2001 | 2,41 Md | 2017 | 5,4 Md |
| 1986 | 917 M | 2002 | 2,43 Md | 2018 | 5,57 Md |
| 1987 | 1,01 Md | 2003 | 2,66 Md | 2019 | 5,66 Md |
| 1988 | 1,16 Md | 2004 | 2,88 Md | 2020 | 4,08 Md |
| 1989 | 1,31 Md | 2005 | 3,06 Md | 2021 | 5,05 Md |
| 1990 | 1,56 Md | 2006 | 3,42 Md | 2022 | 6,3 Md |
| 1991 | 1,66 Md | 2007 | 3,59 Md | 2023 | 6,47 Md |
| 1992 | 1,82 Md | 2008 | 3,85 Md | 2024 | 6,95 Md |
| 1993 | 1,85 Md | 2009 | 3,78 Md | 2025 | 7,16 Md |
| 1994 | 1,93 Md | 2010 | 4 Md | 2026 | 7,47 Md |
| 1995 | 2,06 Md | 2011 | 4,24 Md | | |
Tableau de données
| 1980 | 1,45 Md | 1996 | 3,71 Md | 2012 | 5,1 Md |
| 1981 | 1,53 Md | 1997 | 3,69 Md | 2013 | 4,99 Md |
| 1982 | 1,56 Md | 1998 | 3,92 Md | 2014 | 5,05 Md |
| 1983 | 1,62 Md | 1999 | 4,02 Md | 2015 | 5,04 Md |
| 1984 | 1,75 Md | 2000 | 4,03 Md | 2016 | 5,23 Md |
| 1985 | 1,98 Md | 2001 | 3,89 Md | 2017 | 5,41 Md |
| 1986 | 2,26 Md | 2002 | 3,91 Md | 2018 | 5,57 Md |
| 1987 | 2,35 Md | 2003 | 4,07 Md | 2019 | 5,53 Md |
| 1988 | 2,67 Md | 2004 | 4,37 Md | 2020 | 4,21 Md |
| 1989 | 2,91 Md | 2005 | 4,35 Md | 2021 | 4,69 Md |
| 1990 | 3,2 Md | 2006 | 4,63 Md | 2022 | 5,65 Md |
| 1991 | 3,21 Md | 2007 | 4,72 Md | 2023 | 5,84 Md |
| 1992 | 3,47 Md | 2008 | 4,95 Md | 2024 | 6,11 Md |
| 1993 | 3,49 Md | 2009 | 4,86 Md | 2025 | 6,21 Md |
| 1994 | 3,55 Md | 2010 | 4,88 Md | 2026 | 6,33 Md |
| 1995 | 3,61 Md | 2011 | 5,12 Md | | |