Frequencies for first 10,000 rows of retappt1 variable in namcs2014 dataset :

  Return in |
less than 1 |
       week |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,671       96.71       96.71
        Yes |        329        3.29      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017