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

  number of |
parked/work |
        ing |
   vehicles |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,734       97.34       97.34
          1 |        197        1.97       99.31
          2 |         50        0.50       99.81
          3 |         11        0.11       99.92
          4 |          4        0.04       99.96
          5 |          1        0.01       99.97
          6 |          1        0.01       99.98
          7 |          1        0.01       99.99
         11 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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