Complex sentence: Maryland is the fourth richest state in the United States of America, with a per capita income of $25,615 (2000) and a personal per capita income of $37,331 (2003).
Split into simpler sentences: Maryland is the fourth richest state in the United States of America by per capita income, as of the 2000 United States Census ($25,615). It has a personal per capita income of $37,331 (2003).