Frequencies for b_1_c18_44 variable in snf_rollup2540_96_2011 dataset :

 b_1_c18_44 |      Freq.     Percent        Cum.
------------+-----------------------------------
     -76964 |          1        0.06        0.06
       1498 |          1        0.06        0.11
      27599 |          1        0.06        0.17
      73872 |          1        0.06        0.22
     461827 |          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