Year % 2000 0.018795022331022784 2001 0.01841551381129931 2002 0.018149165094997678 2003 0.01771996394201739 2004 0.01722729193813593 2005 0.017188205647539787 2006 0.017279549050457973 2007 0.01715875154204582 2008 0.01758531086425224 2009 0.017995871904502546 2010 0.016737628716476473 2011 0.0171547594421503 2012 0.01738001537957096 2013 0.01728691356837859 2014 0.017137165135521486 2015 0.017200929328136386 2016 0.017663486805445484 2017 0.017610826199495815 2018 0.017422848269796933 2019 0.01707573419404096 2020 0.017864784380680666