Frequencies for first 10,000 rows of prov2410 variable in pos1997 dataset :

       srv: |
postoperati |
ve recovery |
       room |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,792       87.92       87.92
          0 |        330        3.30       91.22
          1 |        846        8.46       99.68
          2 |         27        0.27       99.95
          3 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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