Visitation Statistics by Year |
| 2008 | 1,270,538 |
| 2007 | 1,467,779 |
| 2006 | 1,612,246 |
| 2005 | 1,661,196 |
| 2004 | 1,307,391 |
| 2003 | 991,875 |
| 2002 | 1,110,998 |
| 2001 | 1,343,286 |
| 2000 | 1,514,636 |
| 1999 | 1,502,855 |
| 1998 | 1,352,373 |
| 1997 | 1,832,087 |
| 1996 | 1,231,557 |
| 1995 | 1,175,028 |
| 1994 | 1,174,289 |
| 1993 | 1,143,741 |
| 1992 | 1,151,661 |
| 1991 | 1,238,653 |
| 1990 | 1,096,816 |
| 1989 | 1,056,188 |
| 1988 | 983,007 |
| 1987 | 1,006,058 |
| 1986 | 898,023 |
| 1985 | 816,652 |
| 1984 | 2,008,608 |
| 1983 | 2,247,974 |
| 1982 | 1,995,397 |
| 1981 | 1,931,852 |
| 1980 | 1,692,338 |
| 1979 | 1,632,589 |
| 1978 | 1,728,256 |
| 1977 | 1,446,200 |
| 1976 | 1,430,500 |
| 1975 | 1,353,900 |
| 1974 | 1,164,900 |
| 1973 | 1,236,500 |
| 1972 | 1,365,104 |
| 1971 | 956,700 |
| 1970 | 822,300 |
| 1969 | 719,900 |
| 1968 | 918,000 |
| 1967 | 786,200 |
| 1966 | 607,600 |
| 1965 | 573,900 |
| 1964 | 517,900 |
| 1963 | 494,700 |
| 1962 | 421,600 |
| 1961 | 769,600 |
| 1960 | 709,100 |
| 1959 | 786,000 |
| 1958 | 461,300 |
| 1957 | 517,300 |
| 1956 | 521,400 |
| 1955 | 416,700 |
| 1954 | 444,600 |
| 1953 | 416,942 |
| 1952 | 694,632 |
| 1951 | 498,023 |
| 1950 | 362,245 |
| 1949 | 350,504 |
| 1948 | 387,753 |
| 1947 | 382,482 |
| 1946 | 405,755 |
| 1945 | 368,629 |
| 1944 | 402,475 |
| 1943 | 394,140 |
| 1942 | 337,926 |
| 1941 | 271,824 |
| 1940 | 287,810 |
| 1939 | 226,741 |
| 1938 | 195,986 |
| 1937 | 203,165 |
| 1936 | 186,049 |
| 1935 | 207,208 |
| 1934 | 240,997 |
| 1933 | 237,690 |
| 1932 | 139,663 |
| 1931 | 124,932 |
| 1930 | 89,578 |
| 1929 | 109,857 |
| 1928 | 78,414 |
| 1927 | 37,551 |
| 1926 | 35,000 |
| 1925 | 64,155 |
| 1924 | 52,110 |
| 1923 | 41,150 |
| 1922 | 27,750 |
| 1921 | 16,071 |
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