Frequencies for first 10,000 rows of prov2185 variable in pos2004 dataset :

       srv: |
  intensive |
  care unit |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,766       87.66       87.66
          0 |        457        4.57       92.23
          1 |        736        7.36       99.59
          2 |         35        0.35       99.94
          3 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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