Frequencies for first 10,000 rows of s3_1_c7_8 variable in snf_rollup2540_96_20

  s3_1_c7_8 |      Freq.     Percent        Cum.
------------+-----------------------------------
        724 |          1        0.01        0.01
          . |      9,999       99.99      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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