Frequencies for first 10,000 rows of clmn_num variable in snf_nmrc2540_96_2011_

   clmn_num |      Freq.     Percent        Cum.
------------+-----------------------------------
       0100 |      2,697       26.97       26.97
       0200 |      4,922       49.22       76.19
       0400 |      1,021       10.21       86.40
       0600 |      1,360       13.60      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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