Frequencies for d_4_irf_c11_71 variable in prds_hosp10_yr2010 dataset :

d_4_irf_c11 |
        _71 |      Freq.     Percent        Cum.
------------+-----------------------------------
          4 |          1        0.04        0.04
          6 |          1        0.04        0.09
         98 |          1        0.04        0.13
          . |      2,320       99.87      100.00
------------+-----------------------------------
      Total |      2,323      100.00

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