Visitation Statistics by Year |
| 2010 | 915,538 |
| 2009 | 900,882 |
| 2008 | 822,118 |
| 2007 | 1,074,764 |
| 2006 | 954,022 |
| 2005 | 1,233,837 |
| 2004 | 1,181,355 |
| 2003 | 1,040,648 |
| 2002 | 968,909 |
| 2001 | 1,049,851 |
| 2000 | 995,390 |
| 1999 | 1,073,982 |
| 1998 | 1,118,215 |
| 1997 | 989,532 |
| 1996 | 890,167 |
| 1995 | 820,466 |
| 1994 | 886,455 |
| 1993 | 973,706 |
| 1992 | 1,025,686 |
| 1991 | 1,292,014 |
| 1990 | 957,925 |
| 1989 | 913,372 |
| 1988 | 1,026,188 |
| 1987 | 787,493 |
| 1986 | 739,072 |
| 1985 | 697,646 |
| 1984 | 628,658 |
| 1983 | 577,439 |
| 1982 | 550,168 |
| 1981 | 564,721 |
| 1980 | 744,244 |
| 1979 | 718,102 |
| 1978 | 923,714 |
| 1977 | 948,000 |
| 1976 | 955,700 |
| 1975 | 782,400 |
| 1974 | 781,200 |
| 1973 | 1,044,000 |
| 1972 | 1,534,328 |
| 1971 | 1,100,500 |
| 1970 | 1,273,500 |
| 1969 | 1,187,200 |
| 1968 | 1,251,500 |
| 1967 | 1,098,300 |
| 1966 | 1,017,100 |
| 1965 | 977,600 |
| 1964 | 792,600 |
| 1963 | 669,200 |
| 1962 | 626,100 |
| 1961 | 566,800 |
| 1960 | 579,200 |
| 1959 | 500,200 |
| 1958 | 443,300 |
| 1957 | 344,700 |
| 1956 | 267,000 |
| 1955 | 247,100 |
| 1954 | 218,000 |
| 1953 | 206,773 |
| 1952 | 168,621 |
| 1951 | 142,971 |
| 1950 | 123,405 |
| 1949 | 94,927 |
| 1948 | 7,482 |
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