Frequencies for first 10,000 rows of statefips variable in zipcode2016 dataset :

  The State |
    Federal |
Information |
 Processing |
     System |
(FIPS) code |      Freq.     Percent        Cum.
------------+-----------------------------------
         01 |          6        0.06        0.06
         02 |          6        0.06        0.12
         04 |          6        0.06        0.18
         05 |          6        0.06        0.24
         06 |          6        0.06        0.30
         08 |          6        0.06        0.36
         09 |        858        8.58        8.94
         10 |          6        0.06        9.00
         11 |          6        0.06        9.06
         12 |          6        0.06        9.12
         13 |          6        0.06        9.18
         15 |          6        0.06        9.24
         16 |          6        0.06        9.30
         17 |          6        0.06        9.36
         18 |          6        0.06        9.42
         19 |          6        0.06        9.48
         20 |          6        0.06        9.54
         21 |          6        0.06        9.60
         22 |          6        0.06        9.66
         23 |      2,340       23.40       33.06
         24 |          6        0.06       33.12
         25 |      3,143       31.43       64.55
         26 |          6        0.06       64.61
         27 |          6        0.06       64.67
         28 |          6        0.06       64.73
         29 |          6        0.06       64.79
         30 |          6        0.06       64.85
         31 |          6        0.06       64.91
         32 |          6        0.06       64.97
         33 |      1,463       14.63       79.60
         34 |          6        0.06       79.66
         35 |          6        0.06       79.72
         36 |         12        0.12       79.84
         37 |          6        0.06       79.90
         38 |          6        0.06       79.96
         39 |          6        0.06       80.02
         40 |          6        0.06       80.08
         41 |          6        0.06       80.14
         42 |          6        0.06       80.20
         44 |        450        4.50       84.70
         45 |          6        0.06       84.76
         46 |          6        0.06       84.82
         47 |          6        0.06       84.88
         48 |          6        0.06       84.94
         49 |          6        0.06       85.00
         50 |      1,470       14.70       99.70
         51 |          6        0.06       99.76
         53 |          6        0.06       99.82
         54 |          6        0.06       99.88
         55 |          6        0.06       99.94
         56 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 21 Sep 2018