Frequencies for first 10,000 rows of state variable in accident dataset :

      State |
     Number |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        792        7.92        7.92
          2 |         52        0.52        8.44
          4 |        698        6.98       15.42
          5 |        509        5.09       20.51
          6 |      2,500       25.00       45.51
          8 |        409        4.09       49.60
          9 |        298        2.98       52.58
         10 |         92        0.92       53.50
         11 |         24        0.24       53.74
         12 |      2,262       22.62       76.36
         13 |      1,148       11.48       87.84
         15 |        109        1.09       88.93
         16 |        185        1.85       90.78
         17 |        858        8.58       99.36
         18 |         64        0.64      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016