Year annual % 1992 31.64759318732555 1993 227.6223444591252 1994 79.9576646131915 1995 32.601701236294076 1996 17.198149438432374 1997 42.20177349292818 1998 -1.6557738047987394 1999 31.63971692607935 2000 17.555817881797857 2001 27.91343789520862 2002 42.05661323375701 2003 49.55014935387534 2004 20.431310201881935 2005 34.60630221284466 2006 34.769829996817464 2007 56.271293248806174 2008 -5.573533198964051 2009 26.991723745401124 2010 62.48646841439128 2011 37.02960373335667 2012 18.728143233118686 2013 24.18161538734308 2014 12.502220743687998 2015 -5.504200358021916 2016 20.992486668937865 2017 30.453258975861573 2018 22.782004866525217 2019 6.978000235749137 2020 17.50584783850636 2021 13.817914802333709 2022 6.464848237167407 2023 26.830691873114766