Frequencies for d_4_irf_c11_55 variable in prds_hosp10_yr2010 dataset :

d_4_irf_c11 |
        _55 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          2        0.09        0.09
          6 |          1        0.04        0.13
         18 |          1        0.04        0.17
         32 |          1        0.04        0.22
         34 |          1        0.04        0.26
         67 |          1        0.04        0.30
         68 |          1        0.04        0.34
        154 |          1        0.04        0.39
        348 |          1        0.04        0.43
        688 |          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