Frequencies for s3_1_c13_18 variable in hcris2552_10_2010 dataset :

    s300001 |
01800 01300 |      Freq.     Percent        Cum.
------------+-----------------------------------
        618 |          1        0.04        0.04
          . |      2,321       99.96      100.00
------------+-----------------------------------
      Total |      2,322      100.00

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