Year % 2001 44.460958481433174 2002 37.71850355666672 2003 24.96673163887006 2004 19.692093616915717 2005 21.837228347391296 2006 16.18194756970546 2007 13.891724803487529 2008 14.347174723993156 2009 32.93163083423802 2010 46.598298053214414 2011 31.975826878788038 2012 31.18976530760298 2013 38.016534368444624 2014 29.859244379590503 2015 23.533149377143577 2016 27.699269537404696 2017 44.30852010872485 2018 47.63512446845156 2019 53.79370884659194 2020 57.38443115138839 2021 54.01939666816744 2022 55.01443626473641 2023 57.181835314711414