Frequencies for d_4_irf_c11_56 variable in prds_hosp10_yr2012 dataset :

d_4_irf_c11 |
        _56 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          5        0.08        0.08
          2 |          2        0.03        0.11
          3 |          2        0.03        0.14
          4 |          1        0.02        0.16
          6 |          1        0.02        0.18
         20 |          1        0.02        0.19
         37 |          1        0.02        0.21
        141 |          1        0.02        0.22
        168 |          1        0.02        0.24
        523 |          1        0.02        0.26
          . |      6,211       99.74      100.00
------------+-----------------------------------
      Total |      6,227      100.00

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