Year % 2001 52.85146869881117 2002 11.026469311990743 2003 11.790961760380357 2004 10.292657229422412 2005 9.483879209959186 2006 8.60888884694794 2007 8.52985511761361 2008 8.632627020751556 2009 12.450950941170651 2010 9.390611701258766 2011 9.43555060065832 2012 12.701642181157696 2013 13.111399440477742 2014 12.174525136710294 2015 11.456477652539029 2016 9.840683841094986 2017 10.369937923538664 2018 9.972315783705133 2019 10.660088845862633 2020 13.008917814082665 2021 12.166133609764977 2022 10.472509268206457 2023 9.097809906412675