Frequencies for state variable in enfrep20140312 dataset :

      State |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          1        0.66        0.66
         AK |         11        7.24        7.89
         AL |          2        1.32        9.21
         AR |          1        0.66        9.87
         AZ |          4        2.63       12.50
         CA |         10        6.58       19.08
         CO |          3        1.97       21.05
         FL |          9        5.92       26.97
         GA |          5        3.29       30.26
         IL |          5        3.29       33.55
         IN |         11        7.24       40.79
         MA |          2        1.32       42.11
         MN |          2        1.32       43.42
         NC |         49       32.24       75.66
         NJ |          3        1.97       77.63
         NY |          6        3.95       81.58
         OH |          2        1.32       82.89
         OR |          2        1.32       84.21
         PA |          6        3.95       88.16
         PR |          1        0.66       88.82
         SC |          2        1.32       90.13
         TN |          1        0.66       90.79
         TX |          9        5.92       96.71
         VA |          2        1.32       98.03
         WI |          3        1.97      100.00
------------+-----------------------------------
      Total |        152      100.00

by Jean Roth , jroth@nber.org , 18 Dec 2015