Year annual % growth 1961 -3.494947622137758 1962 2.242074927953894 1963 16.656331623353452 1964 -18.23746395837695 1965 10.713371027798033 1966 14.080822819723465 1967 4.654500077990946 1968 31.473753241720573 1969 20.62327827595199 1970 13.106773305263957 1971 12.308369824427288 1972 4.300765007916425 1973 15.126795531122553 1974 14.660505237215034 1975 -5.997506636431055 1976 9.394453876627054 1977 9.504773550298637 1978 13.13682261543454 1979 22.28567813231541 1980 21.299940328572276 1981 9.882732303212634 1982 6.079253886224905 1983 4.900456429409573 1984 8.075877481634095 1985 -4.021638091303444 1986 10.912775812360167 1987 13.301005413141127 1988 26.659114223272823 1989 9.601862650643127 1990 14.495228915662665 1991 7.180025950819143 1992 7.469388951956461 1993 18.54848139948237 1994 16.464209562419768 1995 22.90828245756431 1996 10.027586587084386 1997 11.230401727721983 1998 -8.444282618151306 1999 9.411857556801692 2000 20.0190452814917 2001 -6.823281105537561 2002 5.540304623978216 2003 9.88911161901163 2004 22.623288999577824 2005 11.572737002634796 2006 10.299751126897831 2007 7.463947833399828 2008 10.876355159980193 2009 -9.945644685523717 2010 16.306721718207598 2011 5.687543063549285 2012 2.581912243724858 2013 6.51256907152306 2014 2.768513216751529 2015 3.380741427801553 2016 0.18341020754238002 2017 8.240564856543074 2018 7.824262239882557 2019 -0.0794476018802186 2020 -1.665605497334326 2021 9.566169303686394 2022 3.2994853890576508 2023 1.0172279987074972