Year annual % growth 1961 8.264464240917619 1962 10.687017572696703 1963 25.517248941780608 1964 24.175822834711894 1965 8.40707821870555 1966 -3.616653204177325 1967 28.798430119321125 1968 5.899803667699771 1969 15.54310511380163 1970 11.012016242286933 1971 5.844374934223055 1972 6.38321702551201 1973 0.6665100943556723 1974 50.236520731268826 1975 23.55191783914958 1976 16.56463521277331 1977 -3.38874656821379 1978 3.7791290619079803 1979 -17.793324420954562 1980 7.1618683305168815 1981 -7.219532731267648 1982 -1.792196005375132 1983 4.250404245109408 1984 23.4877022001003 1985 -6.90830791450135 1986 -9.213569774115953 1987 -6.369426750461443 1988 3.287981852053562 1989 37.58507135231318 1990 11.696186377434927 1991 2.9128741708042867 1992 2.5530018920259465 1993 12.540870660088729 1994 4.48872842180333 1995 6.231005229578798 1996 2.4299682044682385 1997 3.3779562426162926 1998 -6.226697294364101 1999 -5.300126378393756 2000 -11.200032589637672 2001 -5.785749295640457 2002 -7.3562663480236665 2003 1.801492071780757 2004 1.330899934527622 2005 8.42292091761206 2006 -6.827799123312374 2007 3.0660515036912557 2008 -6.085163502444587 2009 -1.559880091994188 2010 14.809635841766152 2011 4.966965650422139 2012 -3.6391690383401425 2013 -0.34257945778891497 2014 0.3970839529721104 2015 8.658997076977656 2016 -3.2968591652027754 2017 3.8790854976714257 2018 1.3574202772938406 2019 14.002506122766235 2020 10.033492203236946 2021 -1.9793537680928779 2022 6.871640509077537 2023 1.3567548851400204