Year annual % change 1997 -1.8899999856948853 1998 -28.450000762939453 1999 -10.300000190734863 2001 25.1039733887 2002 -0.2800000012 2003 57.5400009155 2004 23.8999996185 2005 20.6932524065 2006 33.9527757042 2007 108.3032702742 2009 -35.3987413125 2010 20.292187339466672 2011 -29.5426338280078 2012 52.948821126675 2013 30.1624941160652 2014 -31.8551732185481 2015 -26.8280550427437 2016 -42.2080341436879 2017 37.421961987168 2018 -17.8596820185501 2019 -19.6923043079691 2020 8.51047017082438 2021 0.178471893712939 2022 -13.3724296237404