Frequencies for d_4_ipf_c13_66 variable in prds_hosp10_yr2010 dataset :

d_4_ipf_c13 |
        _66 |      Freq.     Percent        Cum.
------------+-----------------------------------
        168 |          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