Frequencies for first 10,000 rows of choice_list variable in icd10cmtoicd9gem dataset :

Choice List |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,115       91.15       91.15
          1 |        438        4.38       95.53
          2 |        417        4.17       99.70
          3 |         30        0.30      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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