Frequencies for first 10,000 rows of placefip variable in natl1994 dataset :

      Place |
  (City) of |
  Resdience |
     (FIPS) |      Freq.     Percent        Cum.
------------+-----------------------------------
      00000 |          2        0.02        0.02
      07000 |        722        7.22        7.24
      37000 |        449        4.49       11.73
      41968 |         24        0.24       11.97
      43000 |          1        0.01       11.98
      50000 |        476        4.76       16.74
      51000 |        626        6.26       23.00
      55000 |          1        0.01       23.01
      99999 |      7,699       76.99      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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