Frequencies for first 10,000 rows of rcnty_pop variable in natlterr2003 dataset :

 Population |
         of |
  Residence |
County U;R  |      Freq.     Percent        Cum.
------------+-----------------------------------
          2 |      1,123       11.23       11.23
          3 |      2,118       21.18       32.41
          9 |      6,759       67.59      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015