Frequencies for a_c2_34 variable in snf_rollup2540_96_2011 dataset :

    a_c2_34 |      Freq.     Percent        Cum.
------------+-----------------------------------
         54 |          1        0.06        0.06
        538 |          1        0.06        0.11
       5245 |          1        0.06        0.17
      15040 |          1        0.06        0.22
      19398 |          1        0.06        0.28
      22380 |          1        0.06        0.33
     208908 |          1        0.06        0.39
     277933 |          1        0.06        0.44
          . |      1,801       99.56      100.00
------------+-----------------------------------
      Total |      1,809      100.00

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