Frequencies for d_4_irf_c13_54 variable in prds_hosp10_yr2017 dataset :

Radiology-D |
  iagnostic |
    D00C184 |
      05400 |
      01300 |      Freq.     Percent        Cum.
------------+-----------------------------------
          4 |          2        0.05        0.05
          5 |          1        0.03        0.08
          6 |          1        0.03        0.11
        387 |          1        0.03        0.13
          . |      3,744       99.87      100.00
------------+-----------------------------------
      Total |      3,749      100.00

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