Visitation Statistics by Year |
| 2010 | 176,344 |
| 2009 | 171,451 |
| 2008 | 160,185 |
| 2007 | 219,576 |
| 2006 | 160,450 |
| 2005 | 180,814 |
| 2004 | 175,581 |
| 2003 | 167,247 |
| 2002 | 173,687 |
| 2001 | 181,018 |
| 2000 | 191,506 |
| 1999 | 200,142 |
| 1998 | 193,451 |
| 1997 | 209,863 |
| 1996 | 200,125 |
| 1995 | 221,113 |
| 1994 | 214,194 |
| 1993 | 319,322 |
| 1992 | 337,209 |
| 1991 | 316,336 |
| 1990 | 275,323 |
| 1989 | 288,586 |
| 1988 | 269,073 |
| 1987 | 285,439 |
| 1986 | 289,117 |
| 1985 | 266,012 |
| 1984 | 253,048 |
| 1983 | 291,618 |
| 1982 | 227,428 |
| 1981 | 266,604 |
| 1980 | 336,119 |
| 1979 | 234,286 |
| 1978 | 271,879 |
| 1977 | 310,500 |
| 1976 | 373,600 |
| 1975 | 348,900 |
| 1974 | 267,100 |
| 1973 | 234,800 |
| 1972 | 273,322 |
| 1971 | 223,600 |
| 1970 | 249,000 |
| 1969 | 302,600 |
| 1968 | 215,900 |
| 1967 | 185,100 |
| 1966 | 181,000 |
| 1965 | 184,000 |
| 1964 | 168,200 |
| 1963 | 146,600 |
| 1962 | 131,800 |
| 1961 | 115,000 |
| 1960 | 122,500 |
| 1959 | 100,800 |
| 1958 | 93,000 |
| 1957 | 48,900 |
| 1956 | 62,000 |
| 1955 | 57,200 |
| 1954 | 51,400 |
| 1953 | 51,763 |
| 1952 | 38,449 |
| 1951 | 31,448 |
| 1950 | 26,487 |
| 1949 | 29,739 |
| 1948 | 26,679 |
| 1947 | 22,510 |
| 1946 | 17,573 |
| 1945 | 4,968 |
| 1944 | 2,351 |
| 1943 | 2,087 |
| 1942 | 6,264 |
| 1941 | 18,800 |
| 1940 | 19,307 |
| 1939 | 16,041 |
| 1938 | 15,151 |
| 1937 | 9,770 |
| 1936 | 4,833 |
| 1935 | 1,596 |
| 1934 | 2,592 |
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