Frequencies for first 10,000 rows of state variable in zipcode2007 dataset :

  The State |
 associated |
   with the |
   ZIP code |      Freq.     Percent        Cum.
------------+-----------------------------------
         MA |      4,273       42.73       42.73
         ME |      2,831       28.31       71.04
         NH |      1,800       18.00       89.04
         NY |          3        0.03       89.07
         RI |        588        5.88       94.95
         VT |        505        5.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Jun 2017