Frequencies for state variable in machread2018 dataset :

      State |      Freq.     Percent        Cum.
------------+-----------------------------------
         AK |          4        1.28        1.28
         AL |          5        1.60        2.88
         AR |          7        2.24        5.11
         AZ |         11        3.51        8.63
         DE |          3        0.96        9.58
         FL |         18        5.75       15.34
         GA |         12        3.83       19.17
         HI |          4        1.28       20.45
         IA |          5        1.60       22.04
         IL |         11        3.51       25.56
         IN |          8        2.56       28.12
         KS |          4        1.28       29.39
         KY |          4        1.28       30.67
         LA |          7        2.24       32.91
         ME |          4        1.28       34.19
         MI |         15        4.79       38.98
         MO |          8        2.56       41.53
         MS |          3        0.96       42.49
         MT |          5        1.60       44.09
         NC |          6        1.92       46.01
         ND |          4        1.28       47.28
         NE |          3        0.96       48.24
         NH |          5        1.60       49.84
         NJ |          9        2.88       52.72
         NM |          6        1.92       54.63
         NV |          6        1.92       56.55
         OH |         18        5.75       62.30
         OK |          6        1.92       64.22
         OR |          7        2.24       66.45
         PA |         19        6.07       72.52
         SC |          5        1.60       74.12
         SD |          4        1.28       75.40
         TN |         10        3.19       78.59
         TX |         19        6.07       84.66
         UT |          8        2.56       87.22
         VA |         14        4.47       91.69
         WI |         18        5.75       97.44
         WV |          4        1.28       98.72
         WY |          4        1.28      100.00
------------+-----------------------------------
      Total |        313      100.00

by Jean Roth , jroth@nber.org , 8 Dec 2017