Frequencies for first 10,000 rows of prov2090 variable in pos1996 dataset :

  srv: burn |
  care unit |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,803       88.03       88.03
          0 |      1,129       11.29       99.32
          1 |         33        0.33       99.65
          2 |         33        0.33       99.98
          3 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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