Year annual % growth 1961 4.107473298218167 1962 5.367355640677857 1963 7.126729092450617 1964 10.957380930315537 1965 38.71845399705424 1966 5.3095470946498295 1967 6.648277769494257 1968 7.072376018969891 1969 6.408720471706147 1970 7.01478025051378 1971 4.992128099531229 1972 7.568528971310556 1973 7.196701989641241 1974 4.272637424172359 1975 5.7160313292358325 1976 4.105033834069701 1977 2.4236835050808168 1978 7.251631419036769 1979 8.963725107922983 1980 10.21232006317021 1981 7.759493671589084 1982 -1.8566759496810903 1983 -4.209555458510437 1984 3.7661239937213793 1985 2.9204060094283335 1986 -1.9607438294650308 1987 -0.3039599031682769 1988 1.44838755239509 1989 5.714305545048504 1990 5.532794957505118 1991 4.752483870851748 1992 3.6840167249340965 1993 0.4490803583195486 1994 4.7445804009411034 1995 -5.226872686315801 1996 2.9957250942723306 1997 7.252621550552377 1998 5.981223911668707 1999 4.408447095345068 2000 7.823375413989481 2001 2.0161766177336347 2002 1.4538788522700372 2003 1.8230973767089438 2004 1.894244693294894 2005 2.1803899420162764 2006 4.2313517508079315 2007 1.2966038859261602 2008 1.2325230560556832 2009 -5.760251287931695 2010 4.24234702775604 2011 4.447186777866818 2012 2.2752620236773993 2013 2.317564174132386 2014 2.0279953729246785 2015 2.54924030542621 2016 1.9199728033330672 2017 1.5273061670017114 2018 1.6875240660783533 2019 0.7517700593309087 2020 -9.254681632819015 2021 6.786539741151913 2022 4.6096251980540615 2023 4.01728311712381