Frequencies for first 10,000 rows of divres variable in natl1977 dataset :

Division of |
  residence |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          1        0.01        0.01
          3 |          2        0.02        0.03
          4 |          2        0.02        0.05
          5 |        133        1.33        1.38
          6 |      9,859       98.59       99.97
          7 |          2        0.02       99.99
          9 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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