Year annual % change 1998 -82.25 1999 20.200000762939453 2000 75.1523666382 2001 -36.295501709 2002 26.6800003052 2003 40.2999992371 2004 170.3000030518 2005 52.8202885877 2006 48.6466380544 2007 112.21897135817677 2008 -82.1898922469 2009 31.0764744535 2010 53.843060542736666 2011 -36.2945478151694 2012 -4.0637284968324 2013 -21.2669510267306 2014 -51.504594192289 2015 1.4577419169316 2016 27.8001436217718 2017 31.1557239835199 2018 -16.7836811010661 2019 -12.0456531816135 2020 25.6585685853894 2021 13.1006106400096 2022 -58.2627290518177