Frequencies for first 10,000 rows of burn_care_unit_srvc_cd variable in pos2007 dataset :

  srv: burn |
  care unit |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,682       86.82       86.82
          0 |      1,258       12.58       99.40
          1 |         33        0.33       99.73
          2 |         24        0.24       99.97
          3 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017