Frequencies for s3_1_c11_19 variable in hcris2552_10_2010 dataset :

        snf |
    s300001 |
01900 01100 |      Freq.     Percent        Cum.
------------+-----------------------------------
      37.64 |          1        0.04        0.04
      49.99 |          1        0.04        0.09
          . |      2,320       99.91      100.00
------------+-----------------------------------
      Total |      2,322      100.00

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