Show data table
| 1981 | 1,113 | 1997 | 4,254 | 2013 | 7,153 |
| 1982 | 1,218 | 1998 | 4,527 | 2014 | 7,389 |
| 1983 | 1,347 | 1999 | 4,658 | 2015 | 7,596 |
| 1984 | 1,495 | 2000 | 4,681 | 2016 | 8,089 |
| 1985 | 1,643 | 2001 | 4,775 | 2017 | 7,507 |
| 1986 | 1,865 | 2002 | 4,680 | 2018 | 7,981 |
| 1987 | 2,103 | 2003 | 4,826 | 2019 | 8,466 |
| 1988 | 2,378 | 2004 | 5,165 | 2020 | 6,872 |
| 1989 | 2,582 | 2005 | 5,127 | 2021 | 7,530 |
| 1990 | 2,820 | 2006 | 5,497 | 2022 | 8,193 |
| 1991 | 3,087 | 2007 | 5,940 | 2023 | 8,853 |
| 1992 | 3,288 | 2008 | 6,463 | 2024 | 9,204 |
| 1993 | 3,449 | 2009 | 6,904 | 2025 | 9,895 |
| 1994 | 3,713 | 2010 | 6,981 | 2026 | 10,459 |
| 1995 | 3,855 | 2011 | 7,160 | | |
| 1996 | 4,104 | 2012 | 6,995 | | |
Show data table
| 1981 | 3,004 | 1997 | 11,487 | 2013 | 19,314 |
| 1982 | 3,287 | 1998 | 12,222 | 2014 | 19,949 |
| 1983 | 3,636 | 1999 | 12,575 | 2015 | 20,510 |
| 1984 | 4,037 | 2000 | 12,639 | 2016 | 21,841 |
| 1985 | 4,435 | 2001 | 12,893 | 2017 | 20,270 |
| 1986 | 5,035 | 2002 | 12,637 | 2018 | 21,549 |
| 1987 | 5,678 | 2003 | 13,030 | 2019 | 22,859 |
| 1988 | 6,420 | 2004 | 13,946 | 2020 | 18,555 |
| 1989 | 6,972 | 2005 | 13,844 | 2021 | 20,332 |
| 1990 | 7,613 | 2006 | 14,843 | 2022 | 22,121 |
| 1991 | 8,336 | 2007 | 16,038 | 2023 | 23,902 |
| 1992 | 8,877 | 2008 | 17,451 | 2024 | 24,850 |
| 1993 | 9,311 | 2009 | 18,641 | 2025 | 26,715 |
| 1994 | 10,025 | 2010 | 18,849 | 2026 | 28,239 |
| 1995 | 10,409 | 2011 | 19,333 | | |
| 1996 | 11,082 | 2012 | 18,886 | | |
Show data table
| 1981 | 7,148 | 1997 | 12,381 | 2013 | 16,757 |
| 1982 | 7,470 | 1998 | 12,847 | 2014 | 17,360 |
| 1983 | 7,689 | 1999 | 12,892 | 2015 | 16,708 |
| 1984 | 8,040 | 2000 | 13,192 | 2016 | 17,158 |
| 1985 | 8,184 | 2001 | 13,183 | 2017 | 16,429 |
| 1986 | 8,794 | 2002 | 12,819 | 2018 | 17,002 |
| 1987 | 9,383 | 2003 | 13,643 | 2019 | 17,262 |
| 1988 | 10,153 | 2004 | 14,069 | 2020 | 14,172 |
| 1989 | 10,170 | 2005 | 14,172 | 2021 | 15,074 |
| 1990 | 10,760 | 2006 | 14,843 | 2022 | 15,836 |
| 1991 | 10,944 | 2007 | 15,797 | 2023 | 16,500 |
| 1992 | 11,165 | 2008 | 16,934 | 2024 | 16,999 |
| 1993 | 11,406 | 2009 | 16,747 | 2025 | 17,682 |
| 1994 | 11,409 | 2010 | 16,884 | 2026 | 18,146 |
| 1995 | 11,753 | 2011 | 17,031 | | |
| 1996 | 12,117 | 2012 | 16,970 | | |