Frequencies for first 10,000 rows of prov2185 variable in pos1991 dataset :

       srv: |
  intensive |
  care unit |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,770       87.70       87.70
          0 |        390        3.90       91.60
          1 |        801        8.01       99.61
          2 |         37        0.37       99.98
          3 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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