Year annual % growth 1961 0.4825539275934716 1962 5.405786640891947 1963 4.317320797409849 1964 1.549330423288282 1965 -5.09200558347996 1966 9.606533957931035 1967 8.161990223188752 1968 6.995803391154908 1969 34.43347404072213 1970 3.8530281549465855 1971 -9.554613009182177 1972 1.565668286610105 1973 -6.619696310035195 1974 26.286287226265486 1975 2.7309652669983677 1976 36.5293002282034 1977 -1.5588966653971568 1978 54.90642658511243 1979 29.87641691991078 1980 16.0207026356225 1981 -6.126232136421805 1982 6.020787035915603 1983 14.58865908952798 1984 1.1975556603909183 1985 -2.0027068775553687 1986 9.522704831012788 1987 -0.5004065943314941 1988 -7.708644921087455 1989 -6.3454904437820545 1990 6.599979104491354 1991 6.600007759468625 1992 6.600042634373267 1993 12.999969187876331 1994 9.000023073467062 1995 0.9513665947245187 1996 2.4579798000356874 1997 5.117469315411398 1998 15.264880635090037 1999 6.410738213795781 2000 9.954781025472201 2001 -17.470882205465003 2002 4.420559153869192 2003 13.817043521075561 2004 17.844090958484145 2005 9.81179621640986 2006 12.870814287715831 2007 9.143427571683404 2008 5.296925186744488 2009 1.344039320767635 2016 13.353570541799485 2017 12.06540644372815 2018 0.6361768197336062 2019 -10.55100820090864 2020 -8.587353734334869 2021 6.921918604055605 2022 -24.3035261656712 2023 -9.301295405456528