Frequencies for d_4_irf_c11_57 variable in prds_hosp10_yr2015 dataset :

d_4_irf_c11 |
        _57 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          1        0.02        0.02
          2 |          2        0.03        0.05
          3 |          5        0.08        0.13
          4 |          1        0.02        0.14
          5 |          1        0.02        0.16
          6 |          1        0.02        0.18
          7 |          2        0.03        0.21
          8 |          1        0.02        0.22
          9 |          1        0.02        0.24
         15 |          2        0.03        0.27
         16 |          1        0.02        0.29
         17 |          2        0.03        0.32
         21 |          1        0.02        0.34
         29 |          1        0.02        0.35
         39 |          1        0.02        0.37
         48 |          2        0.03        0.40
         56 |          1        0.02        0.42
         68 |          1        0.02        0.43
         96 |          1        0.02        0.45
        138 |          1        0.02        0.46
        172 |          1        0.02        0.48
        463 |          1        0.02        0.50
          . |      6,227       99.50      100.00
------------+-----------------------------------
      Total |      6,258      100.00

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