Frequencies for first 10,000 rows of quarterbegindate variable in sdued2011 dat

    Quarter |
 Begin Date |      Freq.     Percent        Cum.
------------+-----------------------------------
 01/01/2011 |      7,892       78.92       78.92
 04/01/2011 |      2,108       21.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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