Frequencies for first 10,000 rows of quarterbegindate variable in sdued2010 dat

    Quarter |
 Begin Date |      Freq.     Percent        Cum.
------------+-----------------------------------
 01/01/2010 |      7,607       76.07       76.07
 04/01/2010 |      2,393       23.93      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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