Frequencies for statename variable in DAP_cancer_events_state dataset :

          State Name |      Freq.     Percent        Cum.
---------------------+-----------------------------------
                     |          1        1.89        1.89
             Alabama |          1        1.89        3.77
              Alaska |          1        1.89        5.66
             Arizona |          1        1.89        7.55
            Arkansas |          1        1.89        9.43
          California |          1        1.89       11.32
            Colorado |          1        1.89       13.21
         Connecticut |          1        1.89       15.09
            Delaware |          1        1.89       16.98
District of Columbia |          1        1.89       18.87
             Florida |          1        1.89       20.75
             Georgia |          1        1.89       22.64
              Hawaii |          1        1.89       24.53
               Idaho |          1        1.89       26.42
            Illinois |          1        1.89       28.30
             Indiana |          1        1.89       30.19
                Iowa |          1        1.89       32.08
              Kansas |          1        1.89       33.96
            Kentucky |          1        1.89       35.85
           Louisiana |          1        1.89       37.74
               Maine |          1        1.89       39.62
            Maryland |          1        1.89       41.51
       Massachusetts |          1        1.89       43.40
            Michigan |          1        1.89       45.28
           Minnesota |          1        1.89       47.17
         Mississippi |          1        1.89       49.06
            Missouri |          1        1.89       50.94
             Montana |          1        1.89       52.83
            Nebraska |          1        1.89       54.72
              Nevada |          1        1.89       56.60
       New Hampshire |          1        1.89       58.49
          New Jersey |          1        1.89       60.38
          New Mexico |          1        1.89       62.26
            New York |          1        1.89       64.15
      North Carolina |          1        1.89       66.04
        North Dakota |          1        1.89       67.92
                Ohio |          1        1.89       69.81
            Oklahoma |          1        1.89       71.70
              Oregon |          1        1.89       73.58
        Pennsylvania |          1        1.89       75.47
        Rhode Island |          1        1.89       77.36
      South Carolina |          1        1.89       79.25
        South Dakota |          1        1.89       81.13
           Tennessee |          1        1.89       83.02
               Texas |          1        1.89       84.91
       United States |          1        1.89       86.79
                Utah |          1        1.89       88.68
             Vermont |          1        1.89       90.57
            Virginia |          1        1.89       92.45
          Washington |          1        1.89       94.34
       West Virginia |          1        1.89       96.23
           Wisconsin |          1        1.89       98.11
             Wyoming |          1        1.89      100.00
---------------------+-----------------------------------
               Total |         53      100.00

by Jean Roth , jroth@nber.org , 14 Mar 2018