Year annual % 1961 -1.733231362181389 1962 1.2689710344834042 1963 0.09765926313043363 1964 0.3298174255152695 1965 -0.15341096890120412 1966 -1.1448931229154868 1967 0.6023890752481634 1968 -1.6623468343294885 1969 -1.1595571309554988 1970 -0.48918429404836833 1971 -0.6863327708791699 1972 -1.2231059062007246 1973 0.9826848285165064 1974 -0.10505725941855203 1975 -0.8054430076062682 1976 -0.8849750107716439 1977 -0.8754525644050125 1978 -1.0314774635197876 1979 -0.5805875354639474 1980 -0.7714922773157159 1981 -1.1853118207561817 1982 -1.309695212430014 1983 -1.222941200821823 1984 0.23297235123772558 1985 0.6977683035632307 1986 0.47959389079091624 1987 0.53640567099113 1988 0.5865818553182437 1989 0.6247343220421315 1990 2.021765227476523 1991 4.932305498324417 1992 2.3802049199281567 1993 1.5819019407199955 1994 1.5013136284952324 1995 1.5901307215727725 1996 1.769902287844033 1997 1.7671398934169273 1998 1.561175563151177 1999 1.8156000181006704 2000 1.9174312482208604 2001 1.6270199824419815 2002 1.2900190115387984 2003 1.0761400551966238 2004 1.03305936344927 2005 1.034575718848874 2006 1.0342529951044892 2007 1.0489943415518463 2008 1.0440406137730784 2009 1.652432836420115 2010 1.058939898451964 2011 1.0373623123528077 2012 1.0039154994014772 2013 0.9791467499884949 2014 0.9992538455040963 2015 1.0269083893008946 2016 0.9708475067535379 2017 0.9002842869821145 2018 0.8509826710955071 2019 0.8081655694754237 2020 0.6102477394804 2021 0.50143789942216 2022 0.7440038673002818 2023 0.7974755883994258