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

  RESTRAINT |
 SYSTEM USE |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      3,641       36.41       36.41
          1 |         59        0.59       37.00
          2 |        238        2.38       39.38
          3 |      4,449       44.49       83.87
          4 |        186        1.86       85.73
          5 |        228        2.28       88.01
          6 |          6        0.06       88.07
          8 |         47        0.47       88.54
         13 |         14        0.14       88.68
         14 |         12        0.12       88.80
         15 |         11        0.11       88.91
         99 |      1,109       11.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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