Year % 1991 -33.35679960932398 1992 21.570596557028278 1993 23.723894259442474 1994 16.837496612607094 1995 19.178893196351673 1996 19.354182266152897 1997 10.557508581530564 1998 17.968970874983583 1999 20.427619139051217 2000 18.27423999749085 2001 17.184522380504966 2002 17.89582066459373 2003 -1.5509142082253558 2004 -8.63525201427491 2005 17.32624118628422 2006 12.034513714163348 2007 7.609744711037479 2008 8.65401435672139 2009 14.142945794712206 2010 6.347720678597107 2011 6.930587161558865 2012 9.880588134197756 2013 8.499705583682765 2014 9.184329641524284 2015 12.105545410124966 2016 12.834607398427991 2017 9.338161416287196 2018 8.0792258527232 2019 9.715764840759118 2020 5.973957523345638 2021 1.6990151290432263 2022 1.025970294833195 2023 7.52708778224265