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

     Weight |
 Code-Truck |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         11        0.11        0.11
          1 |      1,476       14.76       14.87
          2 |        653        6.53       21.40
          3 |         15        0.15       21.55
          5 |          8        0.08       21.63
          6 |         57        0.57       22.20
          7 |         54        0.54       22.74
          8 |        254        2.54       25.28
          9 |        842        8.42       33.70
          . |      6,630       66.30      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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