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

     Weight |
 Code-Truck |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,601       16.01       16.01
          2 |        677        6.77       22.78
          3 |         20        0.20       22.98
          4 |         12        0.12       23.10
          5 |          7        0.07       23.17
          6 |         54        0.54       23.71
          7 |         55        0.55       24.26
          8 |        288        2.88       27.14
          9 |        707        7.07       34.21
          . |      6,579       65.79      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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