Table: list of amusement park rankings
Question: What is the maximum and minimum number of visitors to amusement parks in the United States from 2008 to 2012?
Step 1 (Operation, Indexing): 2008	2009	2010	2011	2012
Step 2 (Reasoning, Other Commonsense Reasoning): maximum and minimum number of visitors
Step 3 (Reasoning, Aggregating): MAX, visitors
Step 4 (Reasoning, Aggregating): MIN, visitors
Answer: 17536000, 4308000