In the last week of August, park attendance dropped nearly by half, from 116,539 last year to 61,889 this year.
However, the park attendance slightly increased by 8% in the third year, attracting a total of 4.5 million visitors in 2007.
In 2009, the park attendance again increased by 2% to 4.8 million visitors.
Despite these efforts in May 1992, daily park attendance was around 25,000 (some reports give a figure of 30,000) instead of the predicted 60,000.
The 1988 report of the county's parks police showed an 8 percent increase in park attendance from the previous year.
By 1979, park attendance dropped to two million, the lowest recorded level in the history of the park.
Despite the fee increases, overall park attendance this year is about 2 percent higher than last year at the same time.
And after Thanksgiving, park attendance usually rises to 15,000 to 20,000 visitors a day.
During the second quarter of the century, park attendance began to decline.
As of late July, the park attendance was down 3%, due to a "cool wet spring."