Year annual % growth 1961 3.6273947495249814 1962 2.2295107675310817 1963 4.538376890264189 1964 6.249304179410316 1965 1.90083343510517 1966 2.843323399956006 1967 3.770139610659257 1968 3.0096629604595506 1969 3.500212556671528 1970 4.075232174362583 1971 2.3060625916865263 1972 0.7342062043581308 1973 0.3575328708207621 1974 0.7073038887127439 1975 3.5046246606802924 1976 4.033881587335614 1977 4.6995019467366035 1978 5.575295750965495 1979 -0.7158230082995374 1980 7.0748811762904324 1981 2.293233751845875 1982 1.6210609628550117 1983 5.256316552551326 1984 3.713336825632709 1985 2.9547360462839407 1986 4.332906659939482 1987 3.4522759668305127 1988 6.053858244374325 1989 3.4957326185797655 1990 4.349999771640455 1991 2.7090350424969927 1992 4.376453305556609 1993 3.6327993622372645 1994 3.901699239223106 1995 5.259092076848091 1996 6.139673717930577 1997 3.2789529745962227 1998 4.990947335003099 1999 5.295334106259347 2000 3.466614891569364 2001 4.823299176157576 2002 2.686511727884053 2003 4.978776662813928 2004 5.195576729159285 2005 6.8578539927725615 2006 4.974825207011293 2007 6.505684078697115 2008 4.510092045516799 2009 4.117009994411774 2010 5.837619038694271 2011 6.109957494395758 2012 5.588590641787633 2013 5.8216609355028766 2014 5.535444574056456 2015 6.26181846688263 2016 6.293125130501892 2017 5.443756079236508 2018 5.747219134584469 2019 4.60860029755014 2020 -3.10012725305927 2021 8.481819845316394 2022 6.174628927796718 2023 3.0737032145174368