Visitation Statistics by Year |
| 2010 | 283,284 |
| 2009 | 289,955 |
| 2008 | 273,903 |
| 2007 | 285,121 |
| 2006 | 258,660 |
| 2005 | 279,589 |
| 2004 | 267,204 |
| 2003 | 251,375 |
| 2002 | 234,776 |
| 2001 | 277,523 |
| 2000 | 260,789 |
| 1999 | 286,745 |
| 1998 | 279,768 |
| 1997 | 309,855 |
| 1996 | 309,283 |
| 1995 | 323,663 |
| 1994 | 312,225 |
| 1993 | 294,282 |
| 1992 | 290,654 |
| 1991 | 295,070 |
| 1990 | 272,136 |
| 1989 | 266,321 |
| 1988 | 274,286 |
| 1987 | 225,937 |
| 1986 | 221,449 |
| 1985 | 182,713 |
| 1984 | 141,833 |
| 1983 | 150,177 |
| 1982 | 175,273 |
| 1981 | 172,505 |
| 1980 | 142,427 |
| 1979 | 162,546 |
| 1978 | 277,640 |
| 1977 | 227,900 |
| 1976 | 248,000 |
| 1975 | 271,200 |
| 1974 | 194,700 |
| 1973 | 192,300 |
| 1972 | 217,200 |
| 1971 | 211,300 |
| 1970 | 205,800 |
| 1969 | 174,100 |
| 1968 | 178,600 |
| 1967 | 178,000 |
| 1966 | 157,500 |
| 1965 | 142,100 |
| 1964 | 120,500 |
| 1963 | 105,700 |
| 1962 | 92,800 |
| 1961 | 61,100 |
| 1960 | 52,700 |
| 1959 | 49,300 |
| 1958 | 40,900 |
| 1957 | 36,200 |
| 1956 | 31,200 |
| 1955 | 26,800 |
| 1954 | 26,400 |
| 1953 | 26,137 |
| 1952 | 22,376 |
| 1951 | 16,759 |
| 1950 | 19,004 |
| 1949 | 23,082 |
| 1948 | 16,478 |
| 1947 | 16,016 |
| 1946 | 8,777 |
| 1945 | 6,403 |
| 1944 | 3,466 |
| 1943 | 3,007 |
| 1942 | 3,419 |
| 1941 | 11,684 |
| 1940 | 8,419 |
| 1939 | 11,700 |
| 1938 | 11,050 |
| 1937 | 3,497 |
| 1936 | 3,150 |
| 1935 | 3,000 |
| 1934 | 0 |
| 1933 | 550 |
| 1932 | 500 |
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