Year annual % growth 1961 5.871728713601172 1962 11.175712843365943 1963 8.585162684370403 1964 7.152230024946292 1965 6.953397300461589 1966 8.483064069656237 1967 6.474286111948786 1968 -0.2668845315904207 1969 3.778056905685105 1970 2.6974972109373283 1971 4.901769884296513 1972 2.9200859710824716 1973 7.260628957085501 1974 8.76829678401387 1975 4.570159308740003 1976 1.5382460726873717 1977 0.6268199233716558 1978 -8.938607045492617 1979 -1.989463120923233 1980 9.902645881861076 1981 5.720962370057521 1982 -0.3642345200329089 1983 -6.083431603773576 1984 1.0115674979988398 1985 2.209532688497845 1986 13.761886301963372 1987 10.366554415223433 1988 -9.53087256854684 1989 -16.74696860194331 1990 -1.950004018969537 1991 3.483243704092345 1992 -0.27251194220211516 1993 4.252952998276257 1994 9.353641718034481 1995 9.381336269065415 1996 2.6353171999515865 1997 4.156529294935467 1998 -1.3556433496010527 1999 -0.7230793393821529 2000 2.610362347500697 2001 0.7317579387434421 2002 4.147313518063925 2003 2.711486937155911 2004 3.498412314059138 2005 4.449986175213212 2006 6.421906260022297 2007 7.982702868185896 2008 8.297599007707987 2009 4.362071574951628 2010 8.30031159974132 2011 7.228422942181311 2012 7.559275697385971 2013 6.001594065557512 2014 4.569163548524614 2015 4.637317653853017 2016 3.969980304309246 2017 2.7424030309811656 2018 3.6508736516587987 2019 3.2989453930585455 2020 -6.906633424245371 2021 11.142025892187874 2022 2.90828865696551 2023 0.663591972025614