Tableau de données
| 1980 | 397 | 1996 | 253 | 2012 | 671 |
| 1981 | 301 | 1997 | 297 | 2013 | 673 |
| 1982 | 300 | 1998 | 330 | 2014 | 684 |
| 1983 | 264 | 1999 | 364 | 2015 | 599 |
| 1984 | 270 | 2000 | 335 | 2016 | 434 |
| 1985 | 354 | 2001 | 310 | 2017 | 463 |
| 1986 | 414 | 2002 | 317 | 2018 | 510 |
| 1987 | 187 | 2003 | 341 | 2019 | 512 |
| 1988 | 165 | 2004 | 399 | 2020 | 457 |
| 1989 | 172 | 2005 | 433 | 2021 | 504 |
| 1990 | 272 | 2006 | 451 | 2022 | 573 |
| 1991 | 289 | 2007 | 499 | 2023 | 617 |
| 1992 | 203 | 2008 | 580 | 2024 | 653 |
| 1993 | 201 | 2009 | 536 | 2025 | 623 |
| 1994 | 198 | 2010 | 485 | 2026 | 632 |
| 1995 | 198 | 2011 | 604 | | |
Tableau de données
| 1980 | 14 | 1996 | 2 852 | 2012 | 19 044 |
| 1981 | 11 | 1997 | 3 431 | 2013 | 20 255 |
| 1982 | 11 | 1998 | 3 920 | 2014 | 21 443 |
| 1983 | 11 | 1999 | 4 656 | 2015 | 23 965 |
| 1984 | 11 | 2000 | 5 099 | 2016 | 27 346 |
| 1985 | 15 | 2001 | 6 420 | 2017 | 29 440 |
| 1986 | 17 | 2002 | 7 509 | 2018 | 30 789 |
| 1987 | 54 | 2003 | 8 099 | 2019 | 32 038 |
| 1988 | 87 | 2004 | 9 002 | 2020 | 31 716 |
| 1989 | 136 | 2005 | 9 979 | 2021 | 32 997 |
| 1990 | 253 | 2006 | 11 459 | 2022 | 36 571 |
| 1991 | 415 | 2007 | 12 890 | 2023 | 39 430 |
| 1992 | 510 | 2008 | 14 094 | 2024 | 41 698 |
| 1993 | 777 | 2009 | 14 741 | 2025 | 39 949 |
| 1994 | 1 195 | 2010 | 16 469 | 2026 | 41 035 |
| 1995 | 1 784 | 2011 | 17 569 | | |
Tableau de données
| 1980 | 12 704 | 1996 | 12 352 | 2012 | 27 825 |
| 1981 | 13 022 | 1997 | 13 443 | 2013 | 28 844 |
| 1982 | 11 848 | 1998 | 14 469 | 2014 | 30 208 |
| 1983 | 9 788 | 1999 | 15 775 | 2015 | 31 535 |
| 1984 | 9 009 | 2000 | 15 477 | 2016 | 32 082 |
| 1985 | 9 008 | 2001 | 16 977 | 2017 | 31 987 |
| 1986 | 8 770 | 2002 | 18 080 | 2018 | 32 230 |
| 1987 | 10 077 | 2003 | 18 817 | 2019 | 32 038 |
| 1988 | 10 928 | 2004 | 19 768 | 2020 | 30 741 |
| 1989 | 11 594 | 2005 | 20 417 | 2021 | 30 590 |
| 1990 | 11 547 | 2006 | 21 817 | 2022 | 31 063 |
| 1991 | 11 989 | 2007 | 22 843 | 2023 | 31 875 |
| 1992 | 10 697 | 2008 | 23 753 | 2024 | 31 663 |
| 1993 | 11 400 | 2009 | 24 482 | 2025 | 30 639 |
| 1994 | 11 666 | 2010 | 25 410 | 2026 | 29 969 |
| 1995 | 11 502 | 2011 | 26 485 | | |