Year annual % change 1998 -67.73999786376953 1999 -36.5 2000 -25.3424663544 2001 -25.2948894501 2002 96.6699981689 2003 42.4599990845 2004 99.3000030518 2005 58.7441130298 2006 54.2325949367 2007 32.83534239548601 2008 -72.1774388184 2009 26.1475689872 2010 -6.582816680379366 2011 -18.1629364703549 2012 9.8017436153667 2013 27.2900765709972 2014 -5.15507461481016 2015 -6.43233803115821 2016 -1.11493617551996 2017 22.1269117931077 2018 -8.30101432924432 2019 29.2604353752576 2020 -1.58301271090391 2021 15.363803687296 2022 -17.4669219045149