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

  RESTRAINT |
 SYSTEM USE |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,579       45.79       45.79
          1 |         74        0.74       46.53
          2 |        407        4.07       50.60
          3 |      3,509       35.09       85.69
          4 |        140        1.40       87.09
          5 |        141        1.41       88.50
          6 |          6        0.06       88.56
          8 |         45        0.45       89.01
         13 |         15        0.15       89.16
         14 |          5        0.05       89.21
         15 |          6        0.06       89.27
         99 |      1,073       10.73      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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