Frequencies for first 10,000 rows of placefip variable in natl1999 dataset :

      Place |
  (City) of |
  Resdience |
     (FIPS) |      Freq.     Percent        Cum.
------------+-----------------------------------
      07000 |        730        7.30        7.30
      19000 |          2        0.02        7.32
      37000 |        347        3.47       10.79
      49000 |          1        0.01       10.80
      50000 |        521        5.21       16.01
      51000 |        581        5.81       21.82
      99999 |      7,818       78.18      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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