Frequencies for b_1_c21_64 variable in prds_hosp10_yr2017 dataset :

Intravenous |
    Therapy |
    B000001 |
      06400 |
      02100 |      Freq.     Percent        Cum.
------------+-----------------------------------
       2297 |          1        0.03        0.03
       7868 |          1        0.03        0.05
      41182 |          1        0.03        0.08
          . |      3,746       99.92      100.00
------------+-----------------------------------
      Total |      3,749      100.00

by Jean Roth , jroth@nber.org , 26 Oct 2018