Frequencies for first 10,000 rows of prov2410 variable in pos1995 dataset :

       srv: |
postoperati |
ve recovery |
       room |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,933       89.33       89.33
          0 |        279        2.79       92.12
          1 |        764        7.64       99.76
          2 |         22        0.22       99.98
          3 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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