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

  RESTRAINT |
 SYSTEM USE |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      3,910       39.10       39.10
          1 |         64        0.64       39.74
          2 |        226        2.26       42.00
          3 |      4,216       42.16       84.16
          4 |        167        1.67       85.83
          5 |        178        1.78       87.61
          6 |          8        0.08       87.69
          8 |         54        0.54       88.23
         13 |         32        0.32       88.55
         14 |          9        0.09       88.64
         15 |          5        0.05       88.69
         99 |      1,131       11.31      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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