Year annual % growth 1961 6.72645739910314 1962 29.555506413091535 1963 25.433131347614577 1964 -6.208750085051378 1965 28.858500489680438 1966 57.68050668543279 1967 26.18359040274207 1968 40.025182858678875 1969 25.785559843999437 1970 8.646933611791624 1971 6.257577997929914 1972 2.5785533383429424 1973 26.09577426575325 1974 14.447319300925756 1975 10.29229981058559 1976 27.536126890509223 1977 32.47347757079609 1978 35.19320990768301 1979 9.490528688195795 1980 -11.08757699942916 1981 -2.1470446753177157 1982 11.667619823574583 1983 16.11485959130556 1984 11.620649601155236 1985 6.337063750896505 1986 14.335599816238002 1987 18.436236710416182 1988 14.046770567847773 1989 16.11740023962595 1990 24.615016690889277 1991 14.325674894576636 1992 2.370022355318042 1993 8.125903824332553 1994 14.058598946248594 1995 12.973099867432609 1996 8.566581138106088 1997 -0.5186472388138412 1998 -20.537965381865604 1999 9.253575736267166 2000 13.986478659621056 2001 2.214030580652036 2002 7.442767187426583 2003 5.317341843825602 2004 2.7879296413698853 2005 1.485022652305588 2006 3.972223200236158 2007 5.056947774342831 2008 -0.6153346441562206 2009 0.413669428205111 2010 5.751686893487303 2011 1.3216955086645896 2012 -0.1332372738809653 2013 2.813998408585732 2014 3.105832446563454 2015 5.353816729688916 2016 6.576463243269188 2017 9.781314019771585 2018 -2.201564740563313 2019 -2.13188136131825 2020 3.5408662526095185 2021 3.2425570597775106 2022 -0.5034810895448203 2023 1.144905325774289