Frequencies for d_4_ipf_c11_57 variable in prds_hosp10_yr2015 dataset :

d_4_ipf_c11 |
        _57 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          2        0.03        0.03
          2 |          2        0.03        0.06
          3 |          2        0.03        0.10
          4 |          3        0.05        0.14
          6 |          1        0.02        0.16
          7 |          1        0.02        0.18
          8 |          1        0.02        0.19
          9 |          1        0.02        0.21
         12 |          2        0.03        0.24
         17 |          1        0.02        0.26
         20 |          1        0.02        0.27
         26 |          1        0.02        0.29
         31 |          1        0.02        0.30
         34 |          1        0.02        0.32
         37 |          1        0.02        0.34
         46 |          1        0.02        0.35
         51 |          1        0.02        0.37
         65 |          1        0.02        0.38
         73 |          1        0.02        0.40
        112 |          1        0.02        0.42
        325 |          1        0.02        0.43
        443 |          1        0.02        0.45
          . |      6,230       99.55      100.00
------------+-----------------------------------
      Total |      6,258      100.00

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