Frequencies for first 10,000 rows of prov2185 variable in pos1993 dataset :

       srv: |
  intensive |
  care unit |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,856       88.56       88.56
          0 |        356        3.56       92.12
          1 |        760        7.60       99.72
          2 |         25        0.25       99.97
          3 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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