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

 registered |
   nurses - |
  volunteer |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,954       99.54       99.54
        .01 |          1        0.01       99.55
        .05 |          1        0.01       99.56
        .13 |          2        0.02       99.58
        .25 |         10        0.10       99.68
         .5 |          2        0.02       99.70
        .75 |          1        0.01       99.71
          1 |          9        0.09       99.80
        1.5 |          1        0.01       99.81
          2 |          9        0.09       99.90
          3 |          5        0.05       99.95
        3.5 |          1        0.01       99.96
          4 |          1        0.01       99.97
          6 |          1        0.01       99.98
          8 |          1        0.01       99.99
         15 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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