Frequencies for a_c1_4501 variable in hcris2552_10_2015 dataset :

        icf |
    a000000 |
04501 00100 |      Freq.     Percent        Cum.
------------+-----------------------------------
     854570 |          1        0.02        0.02
    1624477 |          1        0.02        0.03
          . |      6,256       99.97      100.00
------------+-----------------------------------
      Total |      6,258      100.00

by Jean Roth , jroth@nber.org , 23 Aug 2018