Year annual % growth 1971 5.532192195322921 1972 5.888856522153091 1973 5.338917254758215 1974 3.409384814816846 1975 4.504297399343173 1976 3.683237404529521 1977 2.274052335053355 1978 6.040510433188558 1979 2.48092867032679 1980 1.9365985752827015 1981 3.1362303868692294 1982 -0.6773712575879074 1983 0.6255667479748865 1984 0.22429178233736025 1985 2.911701127582944 1986 1.3000199334928624 1987 2.676342612343234 1988 -0.6908455383943419 1989 1.1899309959014488 1990 -0.38670316723886344 1991 3.6436700858768916 1992 1.5026062054089664 1993 -0.17263654658373184 1994 1.3899691490586719 1995 1.507366426526218 1996 1.5180211006167212 1997 1.216358974497524 1998 1.730406301802077 1999 2.384510325880896 2000 2.3638302071026516 2001 2.124348893949062 2002 3.291848644832143 2003 1.8668309088621982 2004 2.403921765073875 2005 0.3641538797575379 2006 0.7444812831193985 2007 1.9256452289790644 2008 3.0997628898298757 2009 1.5790335860486522 2010 0.37165199628559265 2011 0.4862102171353939 2012 1.1848764699919485 2013 0.13860328785175113 2014 1.209810916764397 2015 0.27932249264497955 2016 0.4653247212522871 2017 0.17893575205107481 2018 1.6318790943384016 2019 2.234356030575597 2020 -0.1268167347557494 2021 5.175633113076387 2022 4.478361708564194 2023 1.5745493602895095