Frequencies for state variable in hcris2552_96_1997 dataset :

         state |      Freq.     Percent        Cum.
---------------+-----------------------------------
               |        117        1.83        1.83
            50 |          1        0.02        1.85
            AD |          1        0.02        1.87
            AK |         17        0.27        2.13
            AL |        122        1.91        4.04
            AR |        101        1.58        5.63
       ARIZONA |          2        0.03        5.66
            AZ |         76        1.19        6.85
            CA |        528        8.28       15.13
    CALIFORNIA |          1        0.02       15.14
            CO |         85        1.33       16.47
            CT |         45        0.71       17.18
            DC |         14        0.22       17.40
            DE |         11        0.17       17.57
            EE |          1        0.02       17.59
            FL |        269        4.22       21.80
            GA |        206        3.23       25.03
            HI |         27        0.42       25.45
            IA |        121        1.90       27.35
            ID |         48        0.75       28.10
            IL |        216        3.39       31.49
      ILLINIOS |          1        0.02       31.50
      ILLINOIS |         15        0.24       31.74
            IN |        164        2.57       34.31
            IO |          1        0.02       34.33
            KA |          3        0.05       34.37
        KANSAS |          1        0.02       34.39
            KE |          1        0.02       34.40
            KS |        151        2.37       36.77
            KY |        120        1.88       38.65
            LA |        177        2.77       41.43
            LO |          1        0.02       41.44
            MA |        131        2.05       43.50
            MD |         69        1.08       44.58
            ME |         46        0.72       45.30
            MI |        186        2.92       48.21
      MICHIGAN |          5        0.08       48.29
            MN |        155        2.43       50.72
            MO |        149        2.34       53.06
       MONTANA |          1        0.02       53.07
            MS |        112        1.76       54.83
            MT |         54        0.85       55.67
            NC |        149        2.34       58.01
            ND |         46        0.72       58.73
            NE |         94        1.47       60.20
      NEW YORK |         19        0.30       60.50
            NH |         33        0.52       61.02
            NJ |        111        1.74       62.76
            NM |         43        0.67       63.43
NORTH CAROLINA |          1        0.02       63.45
            NV |         35        0.55       64.00
            NY |        220        3.45       67.45
            OH |        211        3.31       70.75
            OK |        133        2.08       72.84
      OKLAHOMA |          3        0.05       72.88
            OR |         68        1.07       73.95
            PA |        261        4.09       78.04
            PR |         44        0.69       78.73
            RI |         13        0.20       78.93
            SC |         76        1.19       80.13
            SD |         57        0.89       81.02
            SO |          1        0.02       81.03
            TE |         11        0.17       81.21
            TN |        143        2.24       83.45
            TX |        522        8.18       91.63
            US |          1        0.02       91.65
            UT |         46        0.72       92.37
          UTAH |          3        0.05       92.41
            VA |        122        1.91       94.33
            VI |          3        0.05       94.37
            VT |         16        0.25       94.62
            WA |        101        1.58       96.21
            WI |        145        2.27       98.48
     WISCONSIN |          1        0.02       98.50
            WS |          1        0.02       98.51
            WV |         68        1.07       99.58
            WY |         27        0.42      100.00
---------------+-----------------------------------
         Total |      6,380      100.00

by Jean Roth , jroth@nber.org , 6 Sep 2018