Frequencies for d_4_irf_c13_54 variable in prds_hosp10_yr2010 dataset :

d_4_irf_c13 |
        _54 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          2        0.09        0.09
          2 |          2        0.09        0.17
          3 |          1        0.04        0.22
          7 |          1        0.04        0.26
          9 |          1        0.04        0.30
         16 |          1        0.04        0.34
         58 |          1        0.04        0.39
         71 |          1        0.04        0.43
        327 |          1        0.04        0.47
          . |      2,312       99.53      100.00
------------+-----------------------------------
      Total |      2,323      100.00

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