Year annual % growth 1961 21.615430982519584 1962 12.807295796986523 1963 10.588752196836552 1964 6.80174811283274 1965 16.90350420355628 1966 13.345637370330294 1967 10.881527231892193 1968 -9.08952805347377 1969 -0.6182810672311092 1970 6.849007958749013 1971 4.5163659253042425 1972 -0.27101631116687486 1973 12.309395601630513 1974 27.158668279786696 1975 -2.85784762844456 1976 -12.59839663365618 1977 0.3527849257076525 1978 -24.36825344307043 1979 -0.754634439765951 1980 43.76549672158245 1981 18.350452245899135 1982 0.2590673575129472 1983 -23.675710594315248 1984 -15.79771476936098 1985 -13.434186058199728 1986 22.85183464932652 1987 12.046313799621927 1988 -10.253490235775445 1989 -17.760127831563125 1990 11.983541916680963 1991 17.217799550928774 1992 8.833260774923815 1993 3.7961518460738546 1994 26.637891166949274 1995 27.099817407181988 1996 0.10056267209385794 1997 12.201306001387337 1998 1.447514283277897 1999 -14.487149851850305 2000 3.799179220013272 2001 2.9001633561400553 2002 2.530830112276817 2003 2.394309307961578 2004 10.40520698647849 2005 12.177693086405043 2006 12.699508086491846 2007 21.299712675260253 2008 24.980260688351862 2009 -15.939972658353696 2010 26.58042259594653 2011 13.595616075686934 2012 9.997686514090859 2013 2.8666017526776955 2014 -0.990496384082391 2015 0.9721064345644663 2016 1.5687254768289165 2017 7.09901632497818 2018 3.512339145451506 2019 1.6575626294970789 2020 -15.54964398210646 2021 25.567709884185618 2022 3.9676249789387725 2023 -1.8180726868941406