Frequencies for first 10,000 rows of cntyrfip variable in natlterr1998 dataset :

  County of |
  Residence |
     (FIPS) |      Freq.     Percent        Cum.
------------+-----------------------------------
      00000 |          5        0.05        0.05
      12000 |          3        0.03        0.08
      34000 |          1        0.01        0.09
      72021 |        535        5.35        5.44
      72025 |        356        3.56        9.00
      72031 |        475        4.75       13.75
      72097 |        235        2.35       16.10
      72113 |        524        5.24       21.34
      72127 |      1,079       10.79       32.13
      72999 |      6,783       67.83       99.96
      78999 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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