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

    Special |
Jurisdictio |
          n |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,418       94.18       94.18
          1 |         12        0.12       94.30
          2 |          7        0.07       94.37
          3 |         78        0.78       95.15
          8 |          1        0.01       95.16
          9 |        484        4.84      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016