Year Percent change 2001 99.091 2002 21.242 2003 -56.249 2004 -31.455 2005 0.658 2006 -10.583 2007 -31.698 2008 -7.003 2009 -7.237 2010 9.509 2011 -13.222 2012 25.509 2013 -14.137 2014 20.568 2015 37.559 2016 2.966 2017 -22.518 2018 -3.883 2019 14.063 2020 3.858 2021 13.54 2022 1.787 2023 1.385 2024 1.226