Frequencies for first 10,000 rows of meduc6 variable in natl1981 dataset :

  Education |
  of Mother |
   Recode 6 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        588        5.88        5.88
          2 |      2,576       25.76       31.64
          3 |      4,073       40.73       72.37
          4 |      1,638       16.38       88.75
          5 |      1,084       10.84       99.59
          6 |         41        0.41      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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