"FIGURE 2. Monthly International Air Cargo via Chicago, IL: 2001-2003",,,,,,,,,,,, "(Short tons, thousands)",,,,,,,,,,,, Year,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec 2001, 42 , 43 , 50 , 43 , 44 , 44 , 41 , 39 , 38 , 42 , 42 , 38 2002, 33 , 36 , 41 , 38 , 40 , 42 , 40 , 39 , 40 , 47 , 45 , 39 2003, 37 , 41 , 49 , 42 , 42 , 44 , 42 , 42 , 42 , 44 , 45 , 42 "SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, Form 41 Traffic - Segment Data, various years, as of Sept. 16, 2004.",,,,,,,,,,,, ,,,,,,,,,,,, ,,,,,,,,,,,, ,,,,,,,,,,,, ,,,,,,,,,,,, ,,,,,,,,,,,, ,,,,,,,,,,,, ,,,,,,,,,,,, ,,,,,,,,,,,, ,,,,,,,,,,,, ,,, ,,, ,,, ,,, ,,, ,,, ,,, ,,, ,,, ,,, ,,, ,,, ,,, ,,, ,,, ,,, ,,, ,,, ,,, ,,, ,,, ,,, ,,,