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

   Land Use |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,113       51.13       51.13
          2 |      4,882       48.82       99.95
          9 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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