Year annual % change 1996 -19.299999237060547 1997 26.88909912109375 1998 -61.92219924926758 1999 37.5 2000 -16.6653842926 2001 -32.7699279785 2002 112.0299987793 2003 50.3600006104 2004 20.7000007629 2005 58.4540435206 2006 1.346642617 2007 41.74739609667307 2009 56.7056671544 2010 15.320221145674505 2011 -18.8012606907273 2012 26.2133501033816 2013 30.924325888364 2014 18.0662919474714 2015 -11.5371560651469 2016 33.3161656604091 2017 -26.4669355479357 2018 -33.3771737241223 2019 -6.58894618687282 2020 -7.51914619291237 2021 -14.9659321686351 2022 -32.0051278118976