Year % 1989 13.102374966703252 1990 8.721732632933627 1991 17.98648203565107 1992 10.409152274827465 1993 12.312169649937765 1994 12.722713528346416 1995 18.211270679813335 1996 23.73952716189903 1997 13.88473411946475 1998 3.523876311376993 1999 8.930402005398086 2000 9.367775438382946 2001 4.209416352232896 2002 6.731164157051041 2003 4.406965267023778 2004 -11.776678237640043 2005 9.267881537262609 2006 8.485235890211753 2007 -0.16719886548233767 2008 -15.249834842000103 2009 -10.012884507191885 2010 15.143355549450868 2011 10.018913655974027 2012 1.5881429043594564 2013 6.291734551441401 2014 4.897124166569695 2015 13.496784631186472 2016 14.996231075969717 2017 9.682908864178572 2018 8.566122632009078 2019 12.461625738022418 2020 6.060004487505854 2021 6.235638500729668 2022 7.46547541408095 2023 10.560510842165066