Frequencies for first 10,000 rows of op_srgry_unit_srvc_cd variable in pos2008 dataset :

       srv: |
 outpatient |
    surgery |
       unit |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,655       86.55       86.55
          0 |        606        6.06       92.61
          1 |        679        6.79       99.40
          2 |         36        0.36       99.76
          3 |         24        0.24      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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