| Year | Visitors |
|---|---|
| 2019 | 23,768 |
| 2018 | 26,477 |
| 2017 | 31,122 |
| 2016 | 25,982 |
| 2015 | 24,695 |
| 2014 | 22,482 |
| 2013 | 21,008 |
| 2012 | 23,936 |
| 2011 | 21,100 |
| 2010 | 29,795 |
| 2009 | 27,263 |
| 2008 | 23,163 |
| 2007 | 24,779 |
| 2006 | 25,875 |
| 2005 | 23,544 |
| 2004 | 21,801 |
| 2003 | 15,921 |
| 2002 | 13,365 |
| 2001 | 12,311 |
| 2000 | 13,609 |
| 1999 | 13,070 |
| 1998 | 13,267 |
| 1997 | 11,861 |
| 1996 | 11,793 |
| 1995 | 12,808 |