Year % 2001 7.762933546284498 2002 13.482342539137665 2003 13.789498013405407 2004 11.654948341957326 2005 7.476485174809469 2006 8.967622479107215 2007 7.93384301934563 2008 11.760577225958256 2009 11.195891390344139 2010 14.324916147284284 2011 15.84194196337408 2012 8.949773079161712 2013 7.417966000768199 2014 8.206906473318604 2015 7.216370971004447 2016 8.342907644719421 2017 4.846077080556957 2018 6.5319053183225675 2019 6.561902112187575 2020 9.074986678122793 2021 5.9595684537665425 2022 5.46302381931638 2023 5.2816935287067