Year annual % growth 1966 6.383127499178443 1967 4.749845310087636 1968 7.398585893544137 1969 6.4445351882962 1970 -7.098169264523449 1971 -0.6741348539978702 1972 5.656198562663732 1973 3.21188108945951 1974 1.452240448483451 1975 2.8631310739770015 1976 -4.9702732470152 1977 -6.06696845436511 1978 17.371942315091587 1979 -4.933435223577888 1980 16.566765616451477 1981 0.20120670785846073 1982 -8.83535996279528 1983 0.8810822569180914 1984 29.912657745824134 1985 7.495797147852599 1986 1.4696737556975563 1987 0.19876644421357526 1988 9.260484596265385 1989 5.50329761863091 1990 2.9917608126617665 1991 -1.1387910012860232 1992 1.2234449932565923 1993 5.994375098086309 1994 -0.06268330542465606 1995 5.54488436536748 1996 16.36671594573866 1997 4.463174308794834 1998 -2.7610406032179498 1999 5.484820784056566 2000 -4.735379013203911 2001 5.59065173732283 2002 0.3185766627943991 2003 -1.6300692258186729 2004 3.3674996943679645 2005 10.047188156245454 2006 -5.254435273782292 2007 2.118914756514002 2008 -3.8524552136616137 2009 12.555529826315379 2010 4.885817049449614 2011 -0.5963070029037283 2012 7.513952466606426 2013 -5.551212099014521 2014 15.469562531819989 2015 -0.6567796581937557 2016 2.921728803222706 2017 6.806947956150651 2018 4.619178876496122 2019 5.606400976222943 2020 3.2590569492418524 2021 3.2884446660664395 2022 5.103108645322578 2023 4.154855334053863