Frequencies for veh_no variable in parkwork dataset :

    Vehicle |
     Number |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         41        3.85        3.85
          2 |        570       53.57       57.42
          3 |        276       25.94       83.36
          4 |        111       10.43       93.80
          5 |         40        3.76       97.56
          6 |         16        1.50       99.06
          7 |          6        0.56       99.62
          8 |          3        0.28       99.91
          9 |          1        0.09      100.00
------------+-----------------------------------
      Total |      1,064      100.00

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