Frequencies for first 10,000 rows of burn_care_unit_srvc_cd variable in pos1992 dataset :

  srv: burn |
  care unit |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,851       88.51       88.51
          0 |      1,077       10.77       99.28
          1 |         31        0.31       99.59
          2 |         36        0.36       99.95
          3 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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