| Year | Visitors |
|---|---|
| 2019 | 182,123 |
| 2018 | 234,786 |
| 2017 | 233,339 |
| 2016 | 204,120 |
| 2015 | 204,332 |
| 2014 | 215,257 |
| 2013 | 191,095 |
| 2012 | 184,551 |
| 2011 | 206,624 |
| 2010 | 206,870 |
| 2009 | 218,126 |
| 2008 | 232,470 |
| 2007 | 207,441 |
| 2006 | 272,091 |
| 2005 | 232,023 |
| 2004 | 239,903 |
| 2003 | 285,615 |
| 2002 | 272,465 |
| 2001 | 287,499 |
| 2000 | 334,745 |
| 1999 | 365,677 |
| 1998 | 164,011 |
| 1997 | 51,107 |
| 1996 | 49,110 |
| 1995 | 42,121 |
| 1994 | 53,832 |
| 1993 | 56,568 |
| 1992 | 41,036 |