Frequencies for first 10,000 rows of psych_unit_trmntn_cd variable in pos1994 dataset :

psychiatric |
       unit |
termination |
       code |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,787       97.87       97.87
          0 |        167        1.67       99.54
          1 |         19        0.19       99.73
          2 |          1        0.01       99.74
          5 |          3        0.03       99.77
          7 |         23        0.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017