Frequencies for first 10,000 rows of clmn_num variable in snf_nmrc2540_96_2006_

   clmn_num |      Freq.     Percent        Cum.
------------+-----------------------------------
       0100 |      2,557       25.57       25.57
       0200 |      4,610       46.10       71.67
       0400 |        624        6.24       77.91
       0600 |      2,209       22.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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