Year annual % change 1996 13.1000003815 1997 -61.5987014771 1998 9.179599762 1999 0.8999999762 2000 -43.5507240295 2001 -29.9244041443 2002 -19.7199993134 2003 41.4300003052 2004 25.0100002289 2005 21.3107701133 2006 50.3014540726 2007 36.015416076765774 2008 -53.6517666108 2009 71.5215469584 2010 56.669011786169456 2011 0.21508058455082 2012 44.3777977280132 2013 -7.89671352664021 2014 21.6690899845965 2015 -10.6388213652351 2016 -3.28250329065581 2017 22.1486214114073 2018 -16.9628450551238 2019 7.74783806497838 2020 -3.33720076574203 2021 -3.52035251696503 2022 -16.0121120293947