Frequencies for b_1_c21_45 variable in hcris2552_10_2010 dataset :

         nf |
    b000001 |
04500 02100 |      Freq.     Percent        Cum.
------------+-----------------------------------
        663 |          1        0.04        0.04
      12326 |          1        0.04        0.09
          . |      2,320       99.91      100.00
------------+-----------------------------------
      Total |      2,322      100.00

by Jean Roth , jroth@nber.org , 23 Aug 2018