Frequencies for a_c2_46 variable in snf_rollup2540_96_2011 dataset :

    a_c2_46 |      Freq.     Percent        Cum.
------------+-----------------------------------
     173755 |          1        0.06        0.06
          . |      1,808       99.94      100.00
------------+-----------------------------------
      Total |      1,809      100.00

by Jean Roth , jroth@nber.org , 17 Feb 2018