Frequencies for first 10,000 rows of schenr variable in morg92 dataset :

  Attending |
        HS, |
college, or |
 university |
  last week |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        831        8.31        8.31
          2 |        713        7.13       15.44
          . |      8,456       84.56      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Mar 2017