Frequencies for first 10,000 rows of physn_vlntr_cnt variable in pos2012 datase

 Physicians |
- Volunteer |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        602        6.02        6.02
        .01 |          1        0.01        6.03
        .02 |          1        0.01        6.04
        .05 |          1        0.01        6.05
         .1 |          3        0.03        6.08
         .2 |          1        0.01        6.09
        .25 |         10        0.10        6.19
         .3 |          1        0.01        6.20
         .5 |          3        0.03        6.23
          1 |         34        0.34        6.57
          2 |          7        0.07        6.64
          4 |          1        0.01        6.65
          7 |          1        0.01        6.66
         24 |          1        0.01        6.67
          . |      9,333       93.33      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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