Frequencies for first 10,000 rows of quarterbegindate variable in sdued2004 dat

    Quarter |
 Begin Date |      Freq.     Percent        Cum.
------------+-----------------------------------
 01/01/2004 |      7,141       71.41       71.41
 04/01/2004 |      2,859       28.59      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Feb 2018