Frequencies for d_4_irf_c11_91 variable in prds_hosp10_yr2010 dataset :

d_4_irf_c11 |
        _91 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          4        0.17        0.17
          2 |          8        0.34        0.52
          3 |          4        0.17        0.69
          4 |          8        0.34        1.03
          5 |          3        0.13        1.16
          7 |          3        0.13        1.29
          8 |          1        0.04        1.33
         13 |          1        0.04        1.38
         14 |          1        0.04        1.42
         15 |          1        0.04        1.46
         16 |          1        0.04        1.51
         17 |          1        0.04        1.55
         20 |          1        0.04        1.59
         21 |          1        0.04        1.64
         24 |          1        0.04        1.68
         38 |          2        0.09        1.76
         44 |          1        0.04        1.81
         54 |          1        0.04        1.85
         57 |          1        0.04        1.89
        126 |          1        0.04        1.94
        156 |          1        0.04        1.98
        197 |          1        0.04        2.02
        200 |          1        0.04        2.07
        280 |          1        0.04        2.11
          . |      2,274       97.89      100.00
------------+-----------------------------------
      Total |      2,323      100.00

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