Frequencies for first 10,000 rows of prov2410 variable in pos1993 dataset :

       srv: |
postoperati |
ve recovery |
       room |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,856       88.56       88.56
          0 |        271        2.71       91.27
          1 |        851        8.51       99.78
          2 |         21        0.21       99.99
          3 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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