Frequencies for first 10,000 rows of prov2205 variable in pos2010 dataset :

       SRV: |
 LABORATORY |
(ANATOMICAL |
          ) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,626       86.26       86.26
          0 |        578        5.78       92.04
          1 |        365        3.65       95.69
          2 |        359        3.59       99.28
          3 |         72        0.72      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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