Frequencies for pvintype variable in parkwork dataset :

VIN Vehicle |
       Type |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         49        4.89        4.89
          M |          9        0.90        5.79
          P |        518       51.70       57.49
          T |        407       40.62       98.10
          U |         19        1.90      100.00
------------+-----------------------------------
      Total |      1,002      100.00

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