Frequencies for d_4_ipf_c11_57 variable in prds_hosp10_yr2013 dataset :

d_4_ipf_c11 |
        _57 |      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 |          2        0.03        0.19
          7 |          3        0.05        0.24
          8 |          1        0.02        0.26
         12 |          1        0.02        0.27
         18 |          1        0.02        0.29
         23 |          1        0.02        0.30
         47 |          1        0.02        0.32
         63 |          1        0.02        0.34
         96 |          1        0.02        0.35
        112 |          1        0.02        0.37
        127 |          1        0.02        0.38
        147 |          1        0.02        0.40
        148 |          1        0.02        0.42
        200 |          1        0.02        0.43
        253 |          1        0.02        0.45
        720 |          1        0.02        0.46
          . |      6,219       99.54      100.00
------------+-----------------------------------
      Total |      6,248      100.00

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