I think if you have a subscription to Amusement Business online you could see the whole list, but since I don't, here is the estimates I've gathered given the percent changes quoted in the Sun Sentinel article who apparently does have access to the AB numbers:
http://www.sun-sentinel.com/busines...,0,1147665.story?coll=sfla-business-headlines and last year's (2003) attendance figures released from AB quoted online at this site:
http://themeparks.about.com/cs/usparks/a/attendance2003.htm
(My calculated) 2004 Domestic park attendance:
1. Magic Kingdom...15.2 million...UP 8.7 %
2. Disneyland CA...13.4 million...UP 5.0%
3. Epcot..............9.4 milliom....UP 9.0%
4. Disney-MGM Studios..8.26 million..UP 5.0%
5. Disney's Animal Kingdom..7.82 million..UP 7.0%
6. Universal Studios Florida..6.7 million...DOWN 2.2%
7. Islands of Adventure...6.2 million....UP 4.0%
The only other number I could figure out was Seaworld with 5.6 million, UP 7.7%. Last year, DCA was number 8 on the list, and since I don't know the attendance for 2004 for the park, that is why my list stops at 7.
EDIT: I can confirm all of the Disney park attendance figures are exactly as those released by AB (I eventually found them on the AB site under worldwide attendance...see next post). USF and IOA I can not confirm 100% yet, but it looks like USF, despite opening ROTM, Shrek 4D and Jimmy Neutron within the last year or two, was the only park in Orlando to actually see a decrease in attendance.