| Year | Visitors |
|---|---|
| 2019 | 35,495 |
| 2018 | 34,354 |
| 2017 | 53,744 |
| 2016 | 53,184 |
| 2015 | 46,995 |
| 2014 | 53,486 |
| 2013 | 47,309 |
| 2012 | 44,314 |
| 2011 | 45,254 |
| 2010 | 44,081 |
| 2009 | 43,447 |
| 2008 | 44,072 |
| 2007 | 41,393 |
| 2006 | 36,556 |
| 2005 | 36,969 |
| 2004 | 19,064 |
| 2003 | 22,871 |
| 2002 | 29,647 |
| 2001 | 29,272 |
| 2000 | 24,055 |
| 1999 | 32,174 |
| 1998 | 42,144 |
| 1997 | 40,591 |
| 1996 | 24,340 |
| 1995 | 11,087 |