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

      TRUCK |
WEIGHT CODE |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,032       10.32       10.32
          2 |      1,297       12.97       23.29
          3 |         66        0.66       23.95
          4 |         22        0.22       24.17
          5 |         26        0.26       24.43
          6 |         29        0.29       24.72
          7 |         31        0.31       25.03
          8 |        404        4.04       29.07
          9 |        506        5.06       34.13
          . |      6,587       65.87      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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