Frequencies for state variable in daphosp2009 dataset :

      State |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          1        0.04        0.04
         AK |          4        0.15        0.19
         AL |         60        2.31        2.50
         AR |         36        1.38        3.88
         AZ |         37        1.42        5.31
         CA |        208        8.00       13.30
         CO |         29        1.11       14.42
         CT |         29        1.11       15.53
         DC |          7        0.27       15.80
         DE |          5        0.19       15.99
         FL |        155        5.96       21.95
         GA |         77        2.96       24.91
         HI |         10        0.38       25.30
         IA |         34        1.31       26.61
         ID |          9        0.35       26.95
         IL |        119        4.58       31.53
         IN |         72        2.77       34.29
         KS |         30        1.15       35.45
         KY |         52        2.00       37.45
         LA |         49        1.88       39.33
         MA |         55        2.11       41.45
         MD |         42        1.61       43.06
         ME |         19        0.73       43.79
         MI |         81        3.11       46.91
         MN |         35        1.35       48.25
         MO |         63        2.42       50.67
         MS |         41        1.58       52.25
         MT |         11        0.42       52.67
         NC |         88        3.38       56.06
         ND |          7        0.27       56.32
         NE |         18        0.69       57.02
         NH |         15        0.58       57.59
         NJ |         61        2.35       59.94
         NM |         16        0.62       60.55
         NV |         18        0.69       61.25
         NY |        146        5.61       66.86
         OH |        117        4.50       71.36
         OK |         44        1.69       73.05
         OR |         26        1.00       74.05
         PA |        127        4.88       78.93
         RI |         10        0.38       79.32
         SC |         42        1.61       80.93
         SD |          8        0.31       81.24
         TN |         70        2.69       83.93
         TX |        189        7.27       91.20
         US |          1        0.04       91.23
         UT |         14        0.54       91.77
         VA |         67        2.58       94.35
         VT |          9        0.35       94.69
         WA |         45        1.73       96.42
         WI |         61        2.35       98.77
         WV |         28        1.08       99.85
         WY |          4        0.15      100.00
------------+-----------------------------------
      Total |      2,601      100.00

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