This is the data file for the September/October 2002 Review article
"Aviation Security: A Review of the Economic Issues" by
Cletus C. Coughlin, Jeffery P. Cohen, and Sarosh R. Khan			


This is data used for Figure 2.			
Air Traffic: System Revenue Passenger Miles

		2000	2001	2002
January		46,016	49,327	43,167
February	46,374	46,105	41,403
March		56,736	57,390	52,596
April		54,943	55,358	48,829
May		56,804	56,165	51,283
June		60,876	60,510	
July		63,062	63,433	
August		61,890	63,853	
September	52,606	36,169	
October		54,791	41,051	
November	52,179	41,955	
December	51,409	44,823	

SOURCE: Air Transportation Association