Frequencies for d3_irf_c2_34 variable in prds_hosp10_yr2010 dataset :

d3_irf_c2_3 |
          4 |      Freq.     Percent        Cum.
------------+-----------------------------------
       7548 |          1        0.04        0.04
          . |      2,322       99.96      100.00
------------+-----------------------------------
      Total |      2,323      100.00

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