Frequencies for first 10,000 rows of rept_cod_num variable in demo2017q3 dataset :

          rept_cod_num |      Freq.     Percent        Cum.
-----------------------+-----------------------------------
EXP Expedited (15-Day) |      7,010       70.10       70.10
          PER Periodic |      2,990       29.90      100.00
-----------------------+-----------------------------------
                 Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 Feb 2018