Frequencies for first 10,000 rows of meduc14 variable in natl1981 dataset :

  Education |
  of Mother |
  Recode 14 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         40        0.40        0.40
          2 |         53        0.53        0.93
          3 |        117        1.17        2.10
          4 |        378        3.78        5.88
          5 |        687        6.87       12.75
          6 |        955        9.55       22.30
          7 |        934        9.34       31.64
          8 |      4,073       40.73       72.37
          9 |        695        6.95       79.32
         10 |        681        6.81       86.13
         11 |        262        2.62       88.75
         12 |        735        7.35       96.10
         13 |        349        3.49       99.59
         14 |         41        0.41      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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