Frequencies for first 10,000 rows of whldrwhl variable in person dataset :

  Number of |
wheels/driv |
  er wheels |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,207       72.07       72.07
         42 |      1,600       16.00       88.07
         44 |        817        8.17       96.24
         62 |          2        0.02       96.26
         64 |        374        3.74      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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