Frequencies for d_2_irf_c5_98 variable in prds_hosp10_yr2010 dataset :

d_2_irf_c5_ |
         98 |      Freq.     Percent        Cum.
------------+-----------------------------------
        222 |          1        0.04        0.04
        363 |          1        0.04        0.09
        653 |          1        0.04        0.13
        753 |          1        0.04        0.17
          . |      2,319       99.83      100.00
------------+-----------------------------------
      Total |      2,323      100.00

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