Frequencies for d_4_ipf_c13_60 variable in prds_hosp10_yr2016 dataset :

d_4_ipf_c13 |
        _60 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          1        0.02        0.02
          2 |          3        0.05        0.06
          3 |          2        0.03        0.10
          4 |          2        0.03        0.13
          5 |          1        0.02        0.15
          9 |          1        0.02        0.16
         21 |          1        0.02        0.18
         28 |          1        0.02        0.19
         42 |          1        0.02        0.21
          . |      6,169       99.79      100.00
------------+-----------------------------------
      Total |      6,182      100.00

by Jean Roth , jroth@nber.org , 23 Aug 2018