Year annual % growth 1971 6.3063109990606705 1972 3.3899495468361067 1973 5.122858235151085 1974 8.57710907467903 1975 3.4110301740186486 1976 -9.72222594003378 1977 33.269287220132014 1978 5.48335780714649 1979 -1.6415122794404056 1980 1.1362362640271044 1981 2.3796202472789503 1982 4.618071252619501 1983 -3.9501330350165347 1984 1.4934383255967418 1985 0.7551955908711818 1986 -4.909204013604153 1987 17.53694250304993 1988 0.07373871189287229 1989 6.241816980730093 1990 24.654725927055196 1991 5.3339781705601865 1992 13.127966195631416 1993 5.377503669426261 1994 3.8579885285200817 1995 -1.884643328409311 1996 8.517435758642918 1997 4.509509841577682 1998 0.3347654371272881 1999 8.932359670905882 2000 9.12346346538368 2001 -1.7590272351763474 2002 0.6155062041317478 2003 29.787198848101724 2004 10.402397783431951 2005 2.227444242606012 2006 -5.011245333082414 2007 -12.147242433514464 2008 1.2820234508356378 2009 2.5679141656254245 2010 7.156644739930414 2011 -8.32038658657359 2012 14.640292320263598 2013 -1.358311094138486 2014 6.226741638579455 2015 -6.944476888379228 2016 -10.619542939506218 2017 12.363099755597815 2018 -2.385852363732397 2019 -3.007682578322431 2020 0.07137786552631553 2021 19.088896638662504 2022 -0.11489182971241974 2023 22.568946109115416