Frequencies for e_b_irf_c1_22 variable in hcris2552_10_2012 dataset :

    e00c18b |
02200 00100 |      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 , 23 Aug 2018