Frequencies for d_4_irf_c13_60 variable in prds_hosp10_yr2010 dataset :

d_4_irf_c13 |
        _60 |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |          1        0.04        0.04
          3 |          1        0.04        0.09
          4 |          1        0.04        0.13
         97 |          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