Frequencies for first 10,000 rows of rn_vlntr_cnt variable in pos2010 dataset :

 REGISTERED |
   NURSES - |
  VOLUNTEER |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,956       99.56       99.56
        .01 |          2        0.02       99.58
         .1 |          1        0.01       99.59
        .15 |          1        0.01       99.60
         .2 |          1        0.01       99.61
        .25 |          1        0.01       99.62
         .5 |          3        0.03       99.65
        .75 |          1        0.01       99.66
          1 |         17        0.17       99.83
       1.25 |          1        0.01       99.84
        1.5 |          1        0.01       99.85
          2 |          9        0.09       99.94
          3 |          3        0.03       99.97
          4 |          2        0.02       99.99
         26 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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