Visitation Statistics by Year |
| 2010 | 977,778 |
| 2009 | 933,918 |
| 2008 | 845,734 |
| 2007 | 886,654 |
| 2006 | 840,118 |
| 2005 | 909,146 |
| 2004 | 936,030 |
| 2003 | 871,034 |
| 2002 | 908,898 |
| 2001 | 955,469 |
| 2000 | 1,105,824 |
| 1999 | 950,453 |
| 1998 | 1,021,049 |
| 1997 | 970,696 |
| 1996 | 1,024,705 |
| 1995 | 1,075,569 |
| 1994 | 1,130,459 |
| 1993 | 1,179,458 |
| 1992 | 1,205,297 |
| 1991 | 1,518,396 |
| 1990 | 1,326,475 |
| 1989 | 1,237,956 |
| 1988 | 1,110,040 |
| 1987 | 1,174,398 |
| 1986 | 1,025,630 |
| 1985 | 950,242 |
| 1984 | 1,113,675 |
| 1983 | 1,026,981 |
| 1982 | 1,030,484 |
| 1981 | 1,175,952 |
| 1980 | 952,652 |
| 1979 | 858,000 |
| 1978 | 1,234,915 |
| 1977 | 1,305,400 |
| 1976 | 1,210,100 |
| 1975 | 1,153,200 |
| 1974 | 1,205,300 |
| 1973 | 1,387,900 |
| 1972 | 1,274,600 |
| 1971 | 1,282,000 |
| 1970 | 1,303,100 |
| 1969 | 1,221,300 |
| 1968 | 1,194,600 |
| 1967 | 1,188,700 |
| 1966 | 1,094,800 |
| 1965 | 1,091,300 |
| 1964 | 1,079,800 |
| 1963 | 1,074,000 |
| 1962 | 1,044,800 |
| 1961 | 833,300 |
| 1960 | 878,600 |
| 1959 | 825,200 |
| 1958 | 810,800 |
| 1957 | 701,100 |
| 1956 | 663,200 |
| 1955 | 630,900 |
| 1954 | 665,000 |
| 1953 | 658,691 |
| 1952 | 580,902 |
| 1951 | 607,965 |
| 1950 | 447,654 |
| 1949 | 373,076 |
| 1948 | 384,133 |
| 1947 | 339,843 |
| 1946 | 230,403 |
| 1945 | 31,377 |
| 1944 | 10,349 |
| 1943 | 10,149 |
| 1942 | 86,256 |
| 1941 | 252,248 |
| 1940 | 181,993 |
| 1939 | 205,100 |
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