Frequencies for first 10,000 rows of prov2410 variable in pos1999 dataset :

       srv: |
postoperati |
ve recovery |
       room |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,885       88.85       88.85
          0 |        299        2.99       91.84
          1 |        787        7.87       99.71
          2 |         24        0.24       99.95
          3 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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