TABLE 2-8 Runway Pavement Condition of Commercial Service Airports: 1997–2004,,,,,,,, "Percent ",,,,,,,, ,1997,1998,1999,2000,2001,2002,2003,2004 Good condition,79,N,78,79,79,79,80,82 Fair condition,19,N,20,19,19,19,18,16 Poor condition,2,N,2,2,2,2,2,2 KEY: N = data are nonexistent.,,,,,,,, "NOTES: Commercial service airports are defined in box 2-B in chapter two. Only percentage data are readily available. The number of commercial service airports vary from year to year. In 2004, there were 513 commercial service airports. Data for 1994-1996 are nonexistent.",,,,,,,, "SOURCES: 1997-2003—U.S. Department of Transportation (USDOT), Research and Innovative Technology Administration, Bureau of Transportation Statistics, National Transportation Statistics 2004, table 1-24, available at http://www.bts.gov/, as of January 2005. 2004—USDOT, Federal Aviation Administration, National Planning Division, personal communication, February 2005. ",,,,,,,, ,,,,,,,,