Frequencies for first 10,000 rows of divres variable in natl1975 dataset :

Division of |
  residence |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |          1        0.01        0.01
          3 |          5        0.05        0.06
          4 |          3        0.03        0.09
          5 |        155        1.55        1.64
          6 |      9,828       98.28       99.92
          7 |          6        0.06       99.98
          8 |          1        0.01       99.99
          9 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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