Visitation Statistics by Year |
| 2008 | 699,137 |
| 2007 | 658,477 |
| 2006 | 619,983 |
| 2005 | 727,208 |
| 2004 | 651,464 |
| 2003 | 643,697 |
| 2002 | 615,045 |
| 2001 | 725,874 |
| 2000 | 765,195 |
| 1999 | 749,014 |
| 1998 | 716,160 |
| 1997 | 739,410 |
| 1996 | 671,643 |
| 1995 | 732,813 |
| 1994 | 768,685 |
| 1993 | 828,267 |
| 1992 | 810,059 |
| 1991 | 679,034 |
| 1990 | 702,328 |
| 1989 | 706,191 |
| 1988 | 675,397 |
| 1987 | 689,933 |
| 1986 | 613,651 |
| 1985 | 636,711 |
| 1984 | 699,292 |
| 1983 | 634,688 |
| 1982 | 566,807 |
| 1981 | 470,598 |
| 1980 | 611,317 |
| 1979 | 566,486 |
| 1978 | 549,112 |
| 1977 | 422,500 |
| 1976 | 401,000 |
| 1975 | 395,100 |
| 1974 | 363,800 |
| 1973 | 390,800 |
| 1972 | 319,084 |
| 1971 | 323,300 |
| 1970 | 351,800 |
| 1969 | 409,000 |
| 1968 | 307,100 |
| 1967 | 267,800 |
| 1966 | 228,400 |
| 1965 | 229,700 |
| 1964 | 215,900 |
| 1963 | 177,000 |
| 1962 | 146,300 |
| 1961 | 145,100 |
| 1960 | 141,000 |
| 1959 | 133,900 |
| 1958 | 122,700 |
| 1957 | 134,300 |
| 1956 | 101,200 |
| 1955 | 86,600 |
| 1954 | 77,600 |
| 1953 | 65,165 |
| 1952 | 60,466 |
| 1951 | 40,637 |
| 1950 | 36,220 |
| 1949 | 23,665 |
| 1948 | 20,468 |
| 1947 | 16,610 |
| 1946 | 16,811 |
| 1945 | 6,395 |
| 1944 | 5,129 |
| 1943 | 4,988 |
| 1942 | 7,855 |
| 1941 | 15,506 |
| 1940 | 16,892 |
| 1939 | 18,000 |
| 1938 | 20,422 |
| 1937 | 20,000 |
| 1936 | 15,000 |
| 1935 | 9,900 |
| 1934 | 2,500 |
| 1933 | 0 |
| 1932 | 0 |
| 1931 | 0 |
| 1930 | 50,000 |
| 1929 | 87,600 |
| 1928 | 66,450 |
| 1927 | 60,540 |
| 1926 | 53,000 |
| 1925 | 30,000 |
| 1924 | 10,000 |
| 1923 | 6,000 |
| 1922 | 8,000 |
| 1921 | 3,000 |
| 1920 | 5,000 |
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