Frequencies for first 10,000 rows of ip_srgcl_srvc_cd variable in pos2007 dataset :

       srv: |
   surgical |
services-in |
    patient |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,682       86.82       86.82
          0 |        456        4.56       91.38
          1 |        797        7.97       99.35
          2 |         38        0.38       99.73
          3 |         27        0.27      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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