Frequencies for d_4_ipf_c11_57 variable in prds_hosp10_yr2011 dataset :

d_4_ipf_c11 |
        _57 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          1        0.02        0.02
          2 |          2        0.03        0.05
          3 |          1        0.02        0.07
          4 |          2        0.03        0.10
          5 |          2        0.03        0.13
         12 |          1        0.02        0.15
         13 |          1        0.02        0.16
         14 |          1        0.02        0.18
         15 |          1        0.02        0.20
         20 |          1        0.02        0.21
         47 |          1        0.02        0.23
         49 |          1        0.02        0.24
         52 |          1        0.02        0.26
         56 |          1        0.02        0.28
         57 |          1        0.02        0.29
         67 |          1        0.02        0.31
         97 |          1        0.02        0.33
        149 |          1        0.02        0.34
        185 |          1        0.02        0.36
        296 |          1        0.02        0.37
        342 |          1        0.02        0.39
          . |      6,126       99.61      100.00
------------+-----------------------------------
      Total |      6,150      100.00

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