Frequencies for first 10,000 rows of rest_use variable in person dataset :

  RESTRAINT |
 SYSTEM USE |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      3,833       38.33       38.33
          1 |         59        0.59       38.92
          2 |        280        2.80       41.72
          3 |      4,383       43.83       85.55
          4 |        165        1.65       87.20
          5 |        185        1.85       89.05
          6 |         11        0.11       89.16
          8 |         58        0.58       89.74
         13 |         22        0.22       89.96
         14 |          5        0.05       90.01
         15 |          8        0.08       90.09
         99 |        991        9.91      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016