Frequencies for first 10,000 rows of prov2090 variable in pos2002 dataset :

  srv: burn |
  care unit |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,812       88.12       88.12
          0 |      1,128       11.28       99.40
          1 |         28        0.28       99.68
          2 |         29        0.29       99.97
          3 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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