2008-06-12   19.197
2008-07-30   18.904
2009-05-06   18.813
2010-06-12   18.782
2011-03-27   18.770
2012-06-13   18.589
2013-07-19   18.747
2014-07-21   18.806
2014-09-23   18.726
2015-05-25   18.686