Frequencies for e_b_snf_c1_20 variable in hcris2552_10_2017 dataset :

    e00e18b |
02000 00100 |      Freq.     Percent        Cum.
------------+-----------------------------------
        262 |          1        0.03        0.03
        341 |          1        0.03        0.05
       1161 |          1        0.03        0.08
       4665 |          1        0.03        0.11
          . |      3,745       99.89      100.00
------------+-----------------------------------
      Total |      3,749      100.00

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