Frequencies for first 10,000 rows of prov0980 variable in pos1991 dataset :

     mental |
     health |
 services - |
   contract |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,361       93.61       93.61
        .01 |        114        1.14       94.75
        .02 |          5        0.05       94.80
        .03 |         10        0.10       94.90
        .04 |          6        0.06       94.96
        .05 |         16        0.16       95.12
        .06 |          5        0.05       95.17
        .08 |          2        0.02       95.19
         .1 |         29        0.29       95.48
        .11 |          4        0.04       95.52
        .14 |          1        0.01       95.53
        .15 |          3        0.03       95.56
        .17 |          1        0.01       95.57
         .2 |          1        0.01       95.58
        .22 |          2        0.02       95.60
        .25 |        343        3.43       99.03
        .34 |          1        0.01       99.04
         .5 |         27        0.27       99.31
        .57 |          1        0.01       99.32
        .75 |          7        0.07       99.39
        .92 |          1        0.01       99.40
          1 |         38        0.38       99.78
       1.25 |          4        0.04       99.82
        1.5 |          1        0.01       99.83
       1.75 |          1        0.01       99.84
          2 |          3        0.03       99.87
        2.5 |          1        0.01       99.88
          3 |          1        0.01       99.89
       3.75 |          1        0.01       99.90
          4 |          2        0.02       99.92
          8 |          1        0.01       99.93
         12 |          1        0.01       99.94
       32.5 |          1        0.01       99.95
         40 |          1        0.01       99.96
         52 |          1        0.01       99.97
         80 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016