Frequencies for s3_1_c5_17 variable in hcris2552_10_2012 dataset :

        irf |
    s300001 |
01700 00500 |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |          1        0.02        0.02
       4420 |          1        0.02        0.03
          . |      6,225       99.97      100.00
------------+-----------------------------------
      Total |      6,227      100.00

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