Frequencies for d_4_irf_c13_91 variable in prds_hosp10_yr2017 dataset :

  Emergency |
    D00C184 |
      09100 |
      01300 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          1        0.03        0.03
         28 |          1        0.03        0.05
          . |      3,747       99.95      100.00
------------+-----------------------------------
      Total |      3,749      100.00

by Jean Roth , jroth@nber.org , 26 Oct 2018