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

     Manual |
  Restraint |
 System-Use |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,614       56.14       56.14
          1 |          5        0.05       56.19
          2 |         66        0.66       56.85
          3 |        118        1.18       58.03
          4 |         25        0.25       58.28
          5 |        142        1.42       59.70
          8 |        122        1.22       60.92
          9 |      3,908       39.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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