Frequencies for measureenddate variable in hqi_national_hcahps dataset :

Measure End |
       Date |      Freq.     Percent        Cum.
------------+-----------------------------------
  30sep2015 |         32      100.00      100.00
------------+-----------------------------------
      Total |         32      100.00

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