Year annual % change 1996 -38.7000007629 1997 -68.9060974121 1998 120.6911010742 1999 106.5 2000 -57.0997810364 2001 51.2247085571 2002 5.7600002289 2004 25.7099990845 2005 58.8305394455 2006 13.3003201281 2007 27.663237826144556 2008 -55.6178026766 2009 67.2484420404 2010 25.258150919988797 2011 -10.8974013438549 2012 18.8778300762924 2013 3.14675154090391 2014 -9.95934655874864 2015 -5.01212077309577 2016 2.24782794121015 2017 43.4370204999731 2018 -21.8945793917979 2019 7.21989673574603 2020 44.1395186032845 2021 -6.96599965046026 2022 -31.3842874805163