Year annual % 1984 20.2508960573479 1985 5.15399900645818 1986 -13.0565725758829 1987 -5.97484276729554 1988 15.4775176514303 1989 -3.68913460441471 1990 -0.738282265310941 1991 3.19387473029498 1992 -3.11303067214949 1993 -8.42793348651802 1994 41.7248972364414 1995 9.23032599768656 1996 11.3308789057282 1997 5.57225711125331 1998 4.2588511022514 1999 -8.02505962727456 2000 3.82260088086307 2001 12.4312865279941 2002 5.19181895195446 2003 -1.75256941248655 2004 -5.35540028884816 2005 7.89036567462993 2006 8.03628897951332 2007 -8.9747396200927 2008 10.2969758221254 2009 9.95242290748864 2010 -2.07786574641866 2011 2.0292405367826 2012 7.51662364663833 2013 0.222671564624642 2014 1.68197313925661 2015 4.37712665065654 2016 -0.792440525236016 2017 -1.53709962980849 2018 4.27462198610545 2019 -0.971939175419317 2020 4.4641443723286 2021 -0.772844370359139 2022 5.78802687843616 2023 10.8363568399842