Year annual % growth 1961 -3.7197927523250627 1962 3.5251010929471676 1963 -1.5527136586762254 1964 0.4150547805280951 1965 6.668502946522878 1966 -12.239353524935126 1967 -4.710562152251143 1968 0.3532369977063752 1969 -4.579677911757869 1970 6.675478694959452 1971 8.611792905786416 1972 -7.2530393588425 1973 -1.8302310380757802 1974 23.09965137397461 1975 17.148716628696775 1976 18.196551705306987 1977 15.350184821341315 1978 -2.887469086968906 1979 -6.921101821284765 1980 3.7278640547196744 1981 10.296802056010534 1982 11.775418556198701 1983 4.639662762584209 1984 -1.499473858281732 1985 -7.726448388068761 1986 -11.004222123107397 1987 -0.9400024676288155 1988 5.255874679270562 1989 3.9473805291747652 1990 5.767971811107913 1991 6.319828481379616 1992 5.926265776651803 1993 6.49215212488599 1994 3.395687247837614 1995 0.3028856639646733 1996 3.5377653448416737 1997 5.677920180732315 1998 4.3497849871531 1999 3.92432414958877 2000 -3.979302300505367 2001 9.947043014419663 2002 1.985731555031606 2003 4.512386652124917 2004 13.565318416406 2005 6.116413542094207 2006 7.550000168921869 2007 2.612259136106303 2008 1.5800000498324778 2009 2.9968401675896956 2010 7.697000416283743 2011 -17.862144808871605 2012 -4.589999845557429 2013 5.299999774525375 2014 10.000000123772224 2015 4.10296975519482 2016 4.999999945957256 2017 1.8626361335396808 2018 -2.2009459410419936 2019 -0.5723408970377619 2020 -3.396212887157347 2021 -0.8505936389891531 2022 -0.76999998871581 2023 -10.56000011546702