Year % 2002 0.7772596 2003 0.6983478 2004 1.067393 2005 0.7475789 2006 0.5689165 2007 0.5889375 2008 0.9818305 2009 0.9603469 2010 1.046558 2011 1.046558 2012 0.2184159 2013 0.3006789 2014 0.0121153 2015 0.1532698 2016 0.1532698 2017 0.5103207 2018 0.5071915 2019 0.4786803 2020 0.017671 2021 0.1207313