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

     Weight |
 Code-Truck |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        278        2.78        2.78
          1 |      1,100       11.00       13.78
          2 |        729        7.29       21.07
          4 |          6        0.06       21.13
          5 |         15        0.15       21.28
          6 |         66        0.66       21.94
          7 |         23        0.23       22.17
          8 |        105        1.05       23.22
          9 |      1,897       18.97       42.19
          . |      5,781       57.81      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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