Frequencies for d_4_irf_c13_74 variable in prds_hosp10_yr2016 dataset :

d_4_irf_c13 |
        _74 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          1        0.02        0.02
          3 |          1        0.02        0.03
          . |      6,180       99.97      100.00
------------+-----------------------------------
      Total |      6,182      100.00

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