Year annual % growth 1961 15.025905974462049 1962 5.855849495953237 1963 24.680851459564693 1964 10.580207621512287 1965 8.95061716890875 1966 10.56709766801427 1967 26.5491138696013 1968 7.552389128568478 1969 11.183410271405862 1970 7.1342893894180435 1971 4.257583510455461 1972 17.17332042486757 1973 0 1974 117.96175905733372 1975 28.20843970311074 1976 12.535972946452233 1977 -1.1650976726381401 1978 -18.803961627615536 1979 -14.624699944909196 1980 16.13449070004738 1981 43.711008258132665 1982 -9.550483127226045 1983 14.73912370462493 1984 1.7001754135259404 1985 1.870770865037656 1986 -4.154727796639818 1987 -39.23087376024582 1988 13.618067982893763 1989 6.809683130402462 1990 -4.717154963682205 1991 -1.9291782052770259 1992 1.8703197067770674 1993 5.815262891799705 1994 -16.103435343816557 1995 0.7114879733153998 1996 2.4400115862283087 1997 13.956315273706778 1998 26.054903805408784 1999 -23.322809933957444 2000 -16.477763524831644 2001 0.38702283523225844 2002 8.174679506464486 2003 -10.657138431811816 2004 2.6859618910060448 2005 9.27766429655415 2006 17.176905420844605 2007 3.6109011539556093 2008 12.507353704146126 2009 0.13179684604331499 2010 31.588228763964054 2011 12.495519649215026 2012 9.145948684443582 2013 2.5453688077594165 2014 7.86769150814024 2015 -10.734585410954352 2016 -6.5538944759369 2017 -7.282378723830561 2018 51.24082325587494 2019 25.45424904832967 2020 -6.01073379305133 2021 3.484495490453881 2022 8.33157731251248 2023 -0.9414424999321795