Frequencies for whlbs_sh variable in person dataset :

  Wheelbase |
 Short-Auto |      Freq.     Percent        Cum.
------------+-----------------------------------
        866 |          4        0.30        0.30
        920 |          1        0.08        0.38
        921 |         10        0.76        1.13
        933 |          5        0.38        1.51
        943 |          1        0.08        1.59
        953 |          1        0.08        1.66
        962 |          1        0.08        1.74
        980 |          2        0.15        1.89
       1030 |          1        0.08        1.97
       1080 |         10        0.76        2.72
       1081 |          6        0.45        3.18
       1085 |          1        0.08        3.25
       1087 |          1        0.08        3.33
       1099 |          1        0.08        3.40
       1110 |         20        1.51        4.92
       1120 |         18        1.36        6.28
       1140 |          2        0.15        6.43
       1150 |          1        0.08        6.51
       1159 |          3        0.23        6.73
       1160 |          1        0.08        6.81
       1170 |          1        0.08        6.88
       1180 |          2        0.15        7.03
       1215 |          1        0.08        7.11
       1220 |          1        0.08        7.19
       1300 |          1        0.08        7.26
       9999 |        928       70.20       77.46
          . |        298       22.54      100.00
------------+-----------------------------------
      Total |      1,322      100.00

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