Frequencies for wgtcd_tr variable in person dataset :

      TRUCK |
WEIGHT CODE |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         85        7.89        7.89
          2 |         27        2.51       10.40
          3 |          4        0.37       10.77
          4 |          2        0.19       10.96
          5 |          1        0.09       11.05
          7 |          3        0.28       11.33
          8 |         20        1.86       13.18
          9 |        114       10.58       23.77
          . |        821       76.23      100.00
------------+-----------------------------------
      Total |      1,077      100.00

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