Frequencies for first 10,000 rows of prov2190 variable in pos2002 dataset :

       srv: |
  inpatient |
   surgical |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,812       88.12       88.12
          0 |        405        4.05       92.17
          1 |        733        7.33       99.50
          2 |         33        0.33       99.83
          3 |         17        0.17      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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