Frequencies for e_b_irf_c1_22 variable in prds_hosp10_yr2012 dataset :

e_b_irf_c1_ |
         22 |      Freq.     Percent        Cum.
------------+-----------------------------------
       2920 |          1        0.02        0.02
       9678 |          1        0.02        0.03
      18768 |          1        0.02        0.05
          . |      6,224       99.95      100.00
------------+-----------------------------------
      Total |      6,227      100.00

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