Frequencies for a_c1_41 variable in snf_rollup2540_96_2011 dataset :

    a_c1_41 |      Freq.     Percent        Cum.
------------+-----------------------------------
       6721 |          1        0.06        0.06
      10926 |          1        0.06        0.11
      11869 |          1        0.06        0.17
      19550 |          1        0.06        0.22
      29149 |          1        0.06        0.28
          . |      1,804       99.72      100.00
------------+-----------------------------------
      Total |      1,809      100.00

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