Frequencies for first 10,000 rows of scenario variable in icd9toicd10pcsgem dataset :

   Scenario |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,470       94.70       94.70
          1 |        366        3.66       98.36
          2 |        124        1.24       99.60
          3 |         20        0.20       99.80
          4 |         20        0.20      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 11 May 2016