Year annual % growth 1971 3.9515577934523805 1972 6.1755279150611955 1973 5.072857789995041 1974 -0.4254272986285059 1975 2.383058626557826 1976 5.539734667234427 1977 4.1175078329540185 1978 4.272954735157015 1979 2.3705082580250263 1980 -0.1641362996437863 1981 1.3724545806765178 1982 1.1634672477627106 1983 5.43375593338142 1984 5.161604228499755 1985 5.158300182796481 1986 4.079463974988414 1987 3.42118819889059 1988 4.173305874791183 1989 2.9495297992693708 1990 1.9697645377747364 1991 0.09191199933582084 1992 3.5353896435300243 1993 3.3757546971819608 1994 3.81006225023863 1995 2.904739233382088 1996 3.437656747586047 1997 3.83752106347157 1998 5.144404086674271 1999 5.289649060914513 2000 4.9761121854393195 2001 2.471904863519711 2002 2.633026284491052 2003 3.1378728649473544 2004 3.725711886119342 2005 3.565363020894523 2006 2.978332949224054 2007 2.555822285998005 2008 0.3322933213057695 2009 -1.2139223834708446 2010 2.0179989191323955 2011 1.740570916127652 2012 1.4033627377073543 2013 1.8044960386157243 2014 2.8129048923406543 2015 3.2995437108103545 2016 2.431736843312777 2017 2.706785982104549 2018 2.7326673246480055 2019 1.9723238240601688 2020 -2.778679990637073 2021 8.18776811856496 2022 2.695211014533271