Attendance Figures

I am writing an econ paper on the demand for thrills. I was wondering what were some good sites to get attendance figures for various parks (cedar point, six flags, etc.) for the past couple of years?

Any help would be greatly appreciated.

Thanks

On the internet? Try a Yahoo search...I found it in about 30 seconds.

Try

http://www.amusementbusiness.com/amusementbusiness/images/pdf/2003-top-50-north-america.pdf

...which was first result in my search.

thank you very much. I actually did do a search yesterday and came accross a couple of sites that had some random data, I was just wondering if there was an official site somewhere. Thanks for your help.