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

    MEDICAL |
     SOCIAL |
  WORKERS - |
  VOLUNTEER |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,975       99.75       99.75
        .25 |          4        0.04       99.79
         .5 |          2        0.02       99.81
          1 |         13        0.13       99.94
          2 |          2        0.02       99.96
          3 |          2        0.02       99.98
        5.5 |          1        0.01       99.99
          8 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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