Frequencies for first 10,000 rows of prov2410 variable in pos2001 dataset :

       srv: |
postoperati |
ve recovery |
       room |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,837       88.37       88.37
          0 |        320        3.20       91.57
          1 |        807        8.07       99.64
          2 |         29        0.29       99.93
          3 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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