Year annual % growth 1961 3.0870319264456896 1962 1.8734931513604067 1963 7.268546273768294 1964 6.828403099571332 1965 6.431546104913394 1966 2.9024167363155726 1967 3.5518785216417115 1968 4.5798243974611665 1969 3.0276065942988595 1970 7.35869475864979 1971 2.387431203776174 1972 -0.5145986641555567 1973 6.12870173657339 1974 10.572336542223823 1975 -1.4232147017603722 1976 4.730684942809617 1977 6.167340399085688 1978 -17.77015003246946 1979 -27.413558351705646 1980 11.122700497681294 1981 4.030190466981452 1982 -1.5276934385853167 1983 -0.6537874106662684 1984 -2.7417936246510806 1985 -4.81322940615911 1986 -0.6090074516186803 1987 0.6541353555439713 1988 -10.97532007085168 1989 -1.3630476474336461 1990 -0.07842767005556084 1991 2.8172902911650226 1992 1.2312242574630972 1993 -1.5048584045937758 1994 1.2853593066130458 1995 3.668938105657489 1996 4.5665724635173035 1997 5.937941412541889 1998 5.039975659001811 1999 5.6921591674212095 2000 3.9864699735963285 2001 4.109532517100419 2002 2.8589706260529653 2003 3.811767675586154 2004 4.67911845497386 2005 3.245964748908861 2006 3.988936902734025 2007 4.61910622045518 2008 5.969689927050581 2009 -1.78943736557936 2010 5.190338279255087 2011 3.9856594021919562 2012 5.225491943116637 2013 4.807544004493749 2014 5.276293589817939 2015 5.0940309164131605 2016 5.387133764313617 2017 4.632886806544548 2018 -4.678354188981643 2019 -3.2608311442942295 2020 -2.5686824773432306 2021 5.218631613446519 2022 5.228904155175769 2023 4.94227575412107