| Year | Visitors |
|---|---|
| 2019 | 144,969 |
| 2018 | 84,901 |
| 2017 | 113,820 |
| 2016 | 87,547 |
| 2015 | 64,596 |
| 2014 | 56,187 |
| 2013 | 37,647 |
| 2012 | 47,249 |
| 2011 | 36,674 |
| 2010 | 33,313 |
| 2009 | 34,553 |
| 2008 | 31,276 |
| 2007 | 22,125 |
| 2006 | 18,579 |
| 2005 | 17,985 |
| 2004 | 18,145 |
| 2003 | 14,566 |
| 2002 | 15,592 |
| 2001 | 18,095 |
| 2000 | 18,198 |
| 1999 | 14,834 |
| 1998 | 15,563 |
| 1997 | 11,804 |
| 1996 | 11,312 |
| 1995 | 21,165 |
| 1994 | 11,661 |
| 1993 | 8,251 |
| 1992 | 9,560 |
| 1991 | 0 |