Frequencies for first 10,000 rows of prov2185 variable in pos2006 dataset :

 srv: icu - |
medical/sur |
      gical |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,710       87.10       87.10
          0 |        490        4.90       92.00
          1 |        761        7.61       99.61
          2 |         31        0.31       99.92
          3 |          8        0.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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