Year annual % growth 1961 3.1006305899536954 1962 8.978357066567753 1963 6.16829921742692 1964 -0.04343014847822246 1965 13.46200691677349 1966 8.99246837020003 1967 1.3227383788906053 1968 6.487055951126507 1969 9.656115693174016 1970 29.66247580392087 1971 2.88283819085828 1972 15.883024864237584 1973 11.56434898944272 1974 3.793525495800452 1975 4.296589832915615 1976 6.419797558201438 1977 6.610308168030571 1978 13.2968547550619 1979 11.3476132889665 1980 10.403041563268474 1981 2.3615775553966927 1982 -1.7977883422836385 1983 19.490775881634065 1984 14.030232863002695 1985 -2.188120558845739 1986 -8.726997609419001 1987 7.223492432965713 1988 11.711196813524822 1989 -4.62198170295153 1990 0.3832493123058214 1991 5.541720227448195 1992 10.19842845985562 1993 3.8535233052946865 1994 5.121962589450831 1995 7.315677018757157 1996 8.907324633788647 1997 9.400347625988474 1998 6.762712392938354 1999 4.8756368309955604 2000 10.580443770214714 2001 3.072371033281101 2002 3.593601617694972 2003 4.608175339869902 2004 9.995678311162266 2005 7.787508715765483 2006 6.379902987675962 2007 4.885953696832203 2008 0.2154096480631864 2009 -8.367909470122243 2010 13.53109985119454 2011 6.93302556332452 2012 3.6624024446187917 2013 2.2520625879258347 2014 2.4967773906520563 2015 4.315471848941826 2016 2.602145335848988 2017 3.6117241829708604 2018 4.510271482785072 2019 0.803997216611819 2020 -8.357416836523996 2021 7.663087125280271 2022 7.3307443229264635 2023 -2.342713109315582