Year annual % 1967 5.8913370961607825 1968 2.962852174663851 1969 5.131291790088866 1970 1.7139449146248467 1971 0.14049880218396993 1972 -0.5196469425592767 1973 6.918532466323441 1974 -2.7213370441810127 1975 2.8453910420983846 1976 7.355981772403027 1977 1.666698625066914 1978 1.4135743771715852 1979 0.7840100881499694 1980 -2.3563124364548003 1981 -1.2279958959671262 1982 1.4827142947660121 1983 1.9826007728216126 1984 3.571431831121629 1985 4.446812901794118 1986 6.986525957843568 1987 -2.0277977318302334 1988 -1.8803942332868502 1989 0.2579645520952596 1990 0.6372487362654908 1991 1.3592022514202995 1992 2.2268092212217567 1993 -1.1905330542304569 1994 6.298628882490505 1995 1.1504936166742823 1996 1.8768292729516247 1997 2.5187679140197474 1998 1.9813642360561659 1999 -0.44966672418735243 2000 0.0516789877333963 2001 -0.1300402575178765 2002 1.1223418276149744 2003 1.0589849191630805 2004 4.377131274941789 2005 3.4129911068661727 2006 2.6099858478748814 2007 1.3187303450916232 2008 -0.09830593115601971 2009 -3.947449351872791 2010 0.33692258658825835 2011 -0.13625768294215845 2012 0.13493217744134256 2013 -0.13779187287119044 2014 0.4010214544453987 2015 1.5605613076038196 2016 1.626329555569626 2017 1.632233386101916 2018 2.9780535737331775 2019 1.2186354367564434 2020 -1.662047870851552 2021 5.015915044922778 2022 -2.203031540478136 2023 0.29711423123086433