Year annual % growth 1966 4.457642574906288 1967 -4.063162217787536 1968 -4.844583066423041 1969 -0.2813003936184941 1970 39.73625363343888 1971 19.247970976469134 1972 -9.953984072768591 1973 12.02237717330938 1974 -4.002401440887851 1975 4.610599431019608 1976 3.6431242002586544 1977 4.096030687814675 1978 -2.6767611083814273 1979 1.4792497375564437 1980 1.278106021677928 1981 14.107320465780845 1982 -7.587033790623636 1983 4.39181254740231 1984 -3.6151628967321727 1985 13.128546315668714 1986 4.1284026687974205 1987 5.19787518763988 1988 1.5866885379918472 1989 -2.1728748060338745 1990 5.566252718591343 1991 2.1297310437221313 1992 3.1399999985308114 1993 -4.3799999880979215 1994 -9.730000006432675 1995 -6.77000001553013 1996 1.510000003036069 1997 3.3300000026465 1998 1.930000007797645 1999 -1.0400000059616588 2000 -5.17865009221056 2001 -3.442938187432958 2002 4.234388388199079 2003 -3.5138261431810918 2004 -0.23933831614077405 2005 -6.560406974805588 2006 3.189172213273352 2007 -9.338975229979283 2008 1.9641646614961843 2009 -1.176952879403217 2010 1.615687016255734 2011 -1.3581714498443205 2012 2.134247673942369 2013 8.415914339701857 2014 -3.5796934457817287 2015 -3 2016 -2.20000289877278 2017 0.2999971630472942 2018 2.9999907124951477 2019 3.0999899993319247 2020 2.8003600046857713 2021 3.409368375829146 2022 -0.797670003929511 2023 2.7631000000830426