Frequencies for first 10,000 rows of ym_file variable in morg14 dataset :

time series |
 month from |
   original |
       data |      Freq.     Percent        Cum.
------------+-----------------------------------
        648 |     10,000      100.00      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Mar 2017