Year annual % change 1990 -6.577450816793906 1991 12.17654110752413 1992 -2.3128411724022024 1993 30.710399999999982 1994 7.67521176585797 1995 24.641846433243053 1996 25.58032154040233 1997 20.03396302469742 1998 20.838065157550357 1999 8.001643635325761 2000 -6.742176337141559 2001 -23.37303883155468 2002 -20.981066309075793 2003 26.542146812869216 2004 11.368150589105518 2005 10.794225193844454 2006 30.71545032344489 2007 20.392296675932585 2008 -50.39422699806488 2009 41.664302055064994 2010 1.1527885358022294 2011 -16.4220383623144 2012 17.4672473955985 2013 28.2836365014489 2014 -3.28310234569736 2015 0.531392160842659 2016 2.92242680587838 2017 31.7324483997462 2018 -15.3706840335843 2019 30.5540046403108 2020 26.9067989479594 2021 26.5835047273635 2022 -27.860238601613