Year % 2000 0.0822843099487754 2001 0.0824578513509468 2002 0.0542785344173842 2003 0.054277055110258 2004 0.0578027413161929 2005 0.0541383179480146 2006 0.0519940326446947 2007 0.0521970273226566 2008 0.0515396185416715 2009 0.0506781053511177 2010 0.0486403581861955 2011 0.0461800913256707 2012 0.044327286322749 2013 0.0433851782236534 2014 0.0423758051660478 2015 0.0416340987504315 2016 0.0400928525372795 2017 0.0397201177376642 2018 0.0398415734947531 2019 0.0399099476099964 2020 0.0395964747845867