Frequencies for s2_1_c7_3 variable in prds_hosp10_yr2015 dataset :

  s2_1_c7_3 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         79        1.26        1.26
          O |      1,369       21.88       23.14
          P |      4,718       75.39       98.53
          T |         92        1.47      100.00
------------+-----------------------------------
      Total |      6,258      100.00

by Jean Roth , jroth@nber.org , 24 Aug 2018