Frequencies for first 10,000 rows of rept_cod_num variable in demo2016q4 dataset :

          rept_cod_num |      Freq.     Percent        Cum.
-----------------------+-----------------------------------
            DIR Direct |          1        0.01        0.01
EXP Expedited (15-Day) |      6,469       64.69       64.70
          PER Periodic |      3,530       35.30      100.00
-----------------------+-----------------------------------
                 Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Sep 2017