Frequencies for first 10,000 rows of quarterbegindate variable in sdued2007 dat

    Quarter |
 Begin Date |      Freq.     Percent        Cum.
------------+-----------------------------------
 01/01/2007 |      6,255       62.55       62.55
 04/01/2007 |      3,745       37.45      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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