Frequencies for s3_1_c10_2001 variable in hcris2552_10_2013 dataset :

        icf |
    s300001 |
02001 01000 |      Freq.     Percent        Cum.
------------+-----------------------------------
       17.7 |          1        0.02        0.02
      51.95 |          1        0.02        0.03
     254.71 |          1        0.02        0.05
          . |      6,245       99.95      100.00
------------+-----------------------------------
      Total |      6,248      100.00

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