"TABLE 4 Sample Sizes (Unweighted) and Standard Errors (SE) of Estimates Weighted to Reflect Total Reflect Total U.S. Population Age 16+ for Figure 4",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Walked in past 30 days ,Total,Male,Female,16-24,25-34,35-44,45-54,55-64,65+,White,Black,Other,Hispanic,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Sample size,"7,550","3,081","4,469","1,029","1,403","1,638","1,477",987,"1,016","5,881",580,406,683,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Standard errors of estimates ,0.49,0.75,0.63,1.27,1.04,1.01,1.09,1.38,1.39,0.54,1.82,2.16,1.61,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, "SOURCE: National Survey of Pedestrian and Bicyclist Attitudes and Behaviors, 2002. National Highway Traffic Safety Administration (NHTSA) and Bureau of Transportation Statistics (BTS).",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,