Frequencies for first 10,000 rows of meduc14 variable in natl1978 dataset :

  Education |
  of Mother |
  Recode 14 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         35        0.35        0.35
          2 |         53        0.53        0.88
          3 |        168        1.68        2.56
          4 |        441        4.41        6.97
          5 |        786        7.86       14.83
          6 |      1,119       11.19       26.02
          7 |      1,006       10.06       36.08
          8 |      4,113       41.13       77.21
          9 |        614        6.14       83.35
         10 |        541        5.41       88.76
         11 |        205        2.05       90.81
         12 |        620        6.20       97.01
         13 |        265        2.65       99.66
         14 |         34        0.34      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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