Frequencies for d_4_snf_c11_55 variable in prds_hosp10_yr2017 dataset :

Radiology-T |
 herapeutic |
    D00E184 |
      05500 |
      01100 |      Freq.     Percent        Cum.
------------+-----------------------------------
          7 |          1        0.03        0.03
         72 |          1        0.03        0.05
          . |      3,747       99.95      100.00
------------+-----------------------------------
      Total |      3,749      100.00

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