Frequencies for statecode variable in busrules2014 dataset :

 State Code |      Freq.     Percent        Cum.
------------+-----------------------------------
         AK |         42        2.00        2.00
         AL |         60        2.85        4.85
         AR |         46        2.19        7.04
         AZ |        121        5.75       12.79
         DE |         42        2.00       14.79
         FL |         92        4.37       19.16
         GA |         76        3.61       22.78
         IA |         35        1.66       24.44
         ID |         36        1.71       26.15
         IL |         58        2.76       28.91
         IN |         49        2.33       31.24
         KS |         38        1.81       33.05
         LA |         53        2.52       35.57
         ME |         22        1.05       36.61
         MI |        216       10.27       46.89
         MO |         57        2.71       49.60
         MS |         36        1.71       51.31
         MT |         45        2.14       53.45
         NC |         29        1.38       54.83
         ND |         41        1.95       56.78
         NE |         34        1.62       58.39
         NH |         20        0.95       59.34
         NJ |         84        3.99       63.34
         NM |         19        0.90       64.24
         OH |         91        4.33       68.57
         OK |         61        2.90       71.47
         PA |        130        6.18       77.65
         SC |         59        2.81       80.46
         SD |         32        1.52       81.98
         TN |         31        1.47       83.45
         TX |        116        5.52       88.97
         UT |         28        1.33       90.30
         VA |         86        4.09       94.39
         WI |         48        2.28       96.67
         WV |         43        2.04       98.72
         WY |         27        1.28      100.00
------------+-----------------------------------
      Total |      2,103      100.00

by Jean Roth , jroth@nber.org , 6 Oct 2016