Frequencies for first 10,000 rows of start_datestr variable in vwhqi_readm_redu

 Start Date |      Freq.     Percent        Cum.
------------+-----------------------------------
 07/01/2011 |     10,000      100.00      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Nov 2016