Frequencies for first 10,000 rows of burn_care_unit_srvc_cd variable in pos2003 dataset :

  srv: burn |
  care unit |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,789       87.89       87.89
          0 |      1,154       11.54       99.43
          1 |         28        0.28       99.71
          2 |         26        0.26       99.97
          3 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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