"Table 4-4 Number of completed screener interviews with interruptions in telephone service ",, Interruption of service,Count,Percent No interruption,"4,787",95.4 One Week,63,1.3 Two Weeks,51,1 Three Weeks,23,0.5 Four Weeks,17,0.3 "Five Weeks, or more",56,1.1 Unknown,22,0.4 Total,"5,019",100 " Source: 2002 Transportation Availability and Use Study",,