Frequencies for startdatetime variable in vwhqi_readm_reduction dataset :

 Start Date |      Freq.     Percent        Cum.
------------+-----------------------------------
 07/01/2009 |     10,146      100.00      100.00
------------+-----------------------------------
      Total |     10,146      100.00

by Jean Roth , jroth@nber.org , 16 Nov 2016