Frequencies for first 10,000 rows of meduc6 variable in natl1980 dataset :

  Education |
  of Mother |
   Recode 6 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        598        5.98        5.98
          2 |      2,692       26.92       32.90
          3 |      4,035       40.35       73.25
          4 |      1,610       16.10       89.35
          5 |      1,044       10.44       99.79
          6 |         21        0.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 Jan 2016