Frequencies for b_1_c18_36 variable in snf_rollup2540_96_2011 dataset :

 b_1_c18_36 |      Freq.     Percent        Cum.
------------+-----------------------------------
        149 |          1        0.06        0.06
        901 |          1        0.06        0.11
       1803 |          1        0.06        0.17
       2381 |          1        0.06        0.22
      87203 |          1        0.06        0.28
     176506 |          1        0.06        0.33
     277472 |          1        0.06        0.39
     559823 |          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