Frequencies for e_b_irf_c1_4 variable in hcris2552_10_2017 dataset :

    e00c18b |
00400 00100 |      Freq.     Percent        Cum.
------------+-----------------------------------
       1610 |          1        0.03        0.03
          . |      3,748       99.97      100.00
------------+-----------------------------------
      Total |      3,749      100.00

by Jean Roth , jroth@nber.org , 25 Oct 2018