| Year | Visitors |
|---|---|
| 2019 | 17,216 |
| 2018 | 16,387 |
| 2017 | 17,000 |
| 2016 | 17,000 |
| 2015 | 0 |
| 2014 | 0 |
| 2013 | 16,907 |
| 2012 | 31,000 |
| 2011 | 11,722 |
| 2010 | 3,257 |
| 2009 | 2,474 |
| 2008 | 2,147 |
| 2007 | 1,384 |
| 2006 | 3,272 |
| 2005 | 7,010 |
| 2004 | 8,393 |
| 2003 | 3,674 |
| 2002 | 3,586 |
| 2001 | 3,912 |
| 2000 | 2,257 |
| 1999 | 3,927 |
| 1998 | 2,100 |
| 1997 | 7,103 |
| 1996 | 7,103 |
| 1995 | 7,103 |
| 1994 | 7,103 |
| 1993 | 7,053 |
| 1992 | 5,466 |
| 1991 | 5,569 |
| 1990 | 5,126 |
| 1989 | 5,280 |
| 1988 | 5,350 |
| 1987 | 4,475 |
| 1986 | 5,570 |
| 1985 | 7,005 |
| 1984 | 7,835 |
| 1983 | 4,605 |
| 1982 | 4,170 |