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

  The State |
 associated |
   with the |
   ZIP code |      Freq.     Percent        Cum.
------------+-----------------------------------
         AK |          6        0.06        0.06
         AL |          6        0.06        0.12
         AR |          6        0.06        0.18
         AZ |          6        0.06        0.24
         CA |          6        0.06        0.30
         CO |          6        0.06        0.36
         CT |        858        8.58        8.94
         DC |          6        0.06        9.00
         DE |          6        0.06        9.06
         FL |          6        0.06        9.12
         GA |          6        0.06        9.18
         HI |          6        0.06        9.24
         IA |          6        0.06        9.30
         ID |          6        0.06        9.36
         IL |          6        0.06        9.42
         IN |          6        0.06        9.48
         KS |          6        0.06        9.54
         KY |          6        0.06        9.60
         LA |          6        0.06        9.66
         MA |      3,143       31.43       41.09
         MD |          6        0.06       41.15
         ME |      2,340       23.40       64.55
         MI |          6        0.06       64.61
         MN |          6        0.06       64.67
         MO |          6        0.06       64.73
         MS |          6        0.06       64.79
         MT |          6        0.06       64.85
         NC |          6        0.06       64.91
         ND |          6        0.06       64.97
         NE |          6        0.06       65.03
         NH |      1,463       14.63       79.66
         NJ |          6        0.06       79.72
         NM |          6        0.06       79.78
         NV |          6        0.06       79.84
         NY |         12        0.12       79.96
         OH |          6        0.06       80.02
         OK |          6        0.06       80.08
         OR |          6        0.06       80.14
         PA |          6        0.06       80.20
         RI |        450        4.50       84.70
         SC |          6        0.06       84.76
         SD |          6        0.06       84.82
         TN |          6        0.06       84.88
         TX |          6        0.06       84.94
         UT |          6        0.06       85.00
         VA |          6        0.06       85.06
         VT |      1,470       14.70       99.76
         WA |          6        0.06       99.82
         WI |          6        0.06       99.88
         WV |          6        0.06       99.94
         WY |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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