Year annual % growth 1966 1.6306974015129327 1967 3.5567075611303522 1968 0.6849240044416689 1969 3.5658060916195353 1970 2.291860226574755 1971 5.004764568057809 1972 2.4100199838534024 1973 3.42225827686849 1974 3.5375331092302247 1975 3.077761136521758 1976 2.1073362063082755 1977 6.199095625443746 1978 2.635902669046388 1979 1.9194139372534949 1980 2.586763564710367 1981 6.275443312611088 1982 0.7001361870887308 1983 0.15851050094117625 1984 2.6292468331234886 1985 3.6934959545072275 1986 -1.8284450769321836 1987 5.59143645567859 1988 1.8004660403277057 1989 0.20535203481590258 1990 1.5723198828232938 1991 1.5113672871833899 1992 1.5544060642764634 1993 1.4734788668338155 1994 3.918833976882482 1995 3.827333206729719 1996 2.7278771970968876 1997 1.045348816326495 1998 2.6976885322889075 1999 3.4444599712373076 2000 1.940408697602109 2001 3.2756574482556857 2002 2.855348156986466 2003 5.764620198216448 2004 2.09284064174318 2005 3.3969088956615536 2006 4.022745894692733 2007 4.4725125770530525 2008 2.4209140282548134 2009 -5.195526117868468 2010 7.8408643726052105 2011 3.203970700446206 2012 -1.438485965902487 2013 6.463653768237961 2014 2.530813184643918 2015 3.2685365450882955 2016 -0.8483256432193542 2017 7.006681008379573 2018 0.4681117189284265 2019 2.795516717539684 2020 0.4074537300259493 2021 1.8060383410345224 2022 -0.45823861140193856 2023 3.9166587625240936