Year annual % change 1990 -17.088681752729585 1991 7.556281157550049 1992 -13.558818037854314 1993 23.516000000000005 1994 -7.464781890605265 1995 15.323135233315677 1996 25.287251677610477 1997 7.623508467032614 1998 -10.060034884375169 1999 33.12893375864792 2000 3.972848637497828 2001 -18.129001204457175 2002 -12.35546428630575 2003 53.622410674245046 2004 22.269313084763564 2005 25.97545481097172 2006 16.26322998845293 2007 26.42699364254275 2008 -49.04017668774938 2009 57.533090431484226 2010 22.02772043065224 2011 -14.7064259140067 2012 5.99381772938306 2013 2.97976062435605 2014 -2.13617344817959 2015 -26.1668346573362 2016 22.562032632035 2017 13.7467201753953 2018 -19.3761282225631 2019 25.3226174153395 2020 4.48317252178996 2021 22.6826128289126 2022 -14.7983767665954