2008-06-12   20.272
2008-07-30   20.433
2009-05-06   20.425
2010-06-12   20.350
2011-03-27   20.274
2012-06-13   20.495
2013-07-19   20.503
2014-07-21   20.414
2014-09-23   20.517
2015-05-25   20.526