Year	Ratio
2000-01-01	1.03469002246857
2001-01-01	1.03822004795074
2002-01-01	1.04900002479553
2003-01-01	1.14268994331360
2004-01-01	1.13805997371674
2005-01-01	1.07385003566742
2006-01-01	1.12889003753662
2007-01-01	1.25876998901367
2008-01-01	1.31069004535675
2009-01-01	1.35327005386353
2010-01-01	1.29159998893738
2011-01-01	1.35986995697021
2012-01-01	1.36878001689911
2013-01-01	1.42620003223419
2014-01-01	1.42894005775452
2015-01-01	1.41840994358063
2016-01-01	1.45190000534058