Frequencies for first 10,000 rows of aidhlp13 variable in h84 dataset :

       USES |
  ASSISTIVE |
    DEVICES |      Freq.     Percent        Cum.
------------+-----------------------------------
         -1 |         19        0.19        0.19
          1 |        372        3.72        3.91
          2 |      9,609       96.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Feb 2018