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

   Land Use |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,077       50.77       50.77
          2 |      4,910       49.10       99.87
          9 |         13        0.13      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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