Year annual % 1981 3.864928956911754 1982 6.3833170098831005 1983 4.821401883126583 1984 4.110299988593582 1985 2.2799607772245025 1986 1.8676121665265129 1987 1.6377841805295503 1988 2.687379404172546 1989 -3.180256516175845 1990 5.091236413396956 1991 -5.395637148600343 1992 8.530981787732884 1993 3.0060613074486042 1994 -5.276782997448677 1995 3.610206431653168 1996 -1.2916889262001092 1997 4.030153667729792 1998 1.2825157933853575 1999 1.924408712122954 2000 10.847878616072038 2001 2.332907101828738 2002 2.3249448613998 2003 2.1038716355304956 2004 1.919659807122784 2005 2.8375478698833234 2006 2.6469554759411977 2007 0.8000423489553867 2008 3.964611188718152 2009 3.2407407282682925 2010 3.777766749822547 2011 4.143506694759097 2012 3.1684098690874833 2013 4.466247314781796 2014 2.106657589424742 2015 1.1473507610891431 2016 3.3204465624002637 2017 3.81576287682401 2018 3.6424511379731968 2019 1.7607802392317637 2020 -0.19555682714978673 2021 2.1121955769552727 2022 2.38767848524202 2023 2.701093578628374