Frequencies for measureenddate variable in hqi_state_hcahps dataset :

Measure End |
       Date |      Freq.     Percent        Cum.
------------+-----------------------------------
  30sep2013 |      1,624      100.00      100.00
------------+-----------------------------------
      Total |      1,624      100.00

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