Frequencies for first 10,000 rows of burn_care_unit_srvc_cd variable in pos2005 dataset :

  srv: burn |
  care unit |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,731       87.31       87.31
          0 |      1,207       12.07       99.38
          1 |         29        0.29       99.67
          2 |         30        0.30       99.97
          3 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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