| Year | Visitors |
|---|---|
| 2019 | 1,205,065 |
| 2018 | 1,134,857 |
| 2017 | 1,218,306 |
| 2016 | 1,148,494 |
| 2015 | 1,239,423 |
| 2014 | 1,121,318 |
| 2013 | 1,031,667 |
| 2012 | 1,076,310 |
| 2011 | 1,028,922 |
| 2010 | 993,948 |
| 2009 | 1,195,171 |
| 2008 | 1,038,888 |
| 2007 | 999,833 |
| 2006 | 1,011,989 |
| 2005 | 903,177 |
| 2004 | 750,230 |
| 2003 | 810,821 |
| 2002 | 655,335 |
| 2001 | 707,183 |
| 2000 | 650,585 |
| 1999 | 637,012 |
| 1998 | 633,233 |
| 1997 | 121,420 |
| 1996 | 59,701 |
| 1995 | 50,812 |
| 1994 | 50,329 |
| 1993 | 52,945 |
| 1992 | 49,861 |