Frequencies for first 10,000 rows of rn_vlntr_cnt variable in pos2008 dataset :

 registered |
   nurses - |
  volunteer |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,950       99.50       99.50
        .01 |          1        0.01       99.51
         .1 |          1        0.01       99.52
        .13 |          1        0.01       99.53
        .15 |          1        0.01       99.54
         .2 |          1        0.01       99.55
        .25 |          3        0.03       99.58
         .5 |          2        0.02       99.60
        .75 |          1        0.01       99.61
          1 |         19        0.19       99.80
       1.25 |          1        0.01       99.81
        1.5 |          2        0.02       99.83
          2 |         10        0.10       99.93
          3 |          3        0.03       99.96
          4 |          2        0.02       99.98
         15 |          1        0.01       99.99
         20 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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