Year annual % change 1990 -21.241663878666216 1991 16.256835630520538 1992 -18.801774018841233 1993 36.2276 1994 8.20391756149268 1995 28.652149608286347 1996 27.923532163138276 1997 29.953770020796288 1998 36.087469009391704 1999 -17.434531787191887 2000 9.14005586820863 2001 -5.441965013204753 2002 -21.22363185454156 2003 49.853704203998774 2004 38.007396662232985 2005 -1.0158246264809878 2006 41.2002059318203 2007 -19.620082770591107 2008 -69.94270192761674 2009 44.74778153364818 2010 -7.684540870085321 2011 -1.52017475260596 2012 19.4024771996844 2013 43.1910174098504 2014 0.811369541447871 2015 24.1788483436368 2016 -6.97547137428164 2017 24.3145229318191 2018 -21.843467591209 2019 29.9676534442548 2020 10.4001841918619 2021 14.0166714530568 2022 -26.8176625741507