Frequencies for first 10,000 rows of measurestartdatestr variable in hqi_hosp_r Measure | Start Date | Freq. Percent Cum. ------------+----------------------------------- 04/01/2010 | 531 5.31 5.31 07/01/2010 | 5,831 58.31 63.62 07/01/2011 | 3,108 31.08 94.70 07/01/2012 | 530 5.30 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 16 Nov 2016