Frequencies for first 10,000 rows of fipsst variable in zipcode dataset :

 FIPS State |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
         02 |          1        0.01        0.01
         08 |          1        0.01        0.02
         09 |        435        4.35        4.37
         10 |         98        0.98        5.35
         11 |        275        2.75        8.10
         12 |          1        0.01        8.11
         15 |          1        0.01        8.12
         23 |        505        5.05       13.17
         24 |        618        6.18       19.35
         25 |        745        7.45       26.80
         33 |        278        2.78       29.58
         34 |        734        7.34       36.92
         36 |      2,238       22.38       59.30
         42 |      2,224       22.24       81.54
         44 |         91        0.91       82.45
         50 |        308        3.08       85.53
         51 |      1,251       12.51       98.04
         64 |          1        0.01       98.05
         68 |          1        0.01       98.06
         69 |          1        0.01       98.07
         70 |          1        0.01       98.08
         72 |        176        1.76       99.84
         78 |         16        0.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 4 Jan 2016
 tail -n+3 /homes/data/zip/sas/2003/desc/zipcode/byvar/tab/fipsst.log | egrep -