Year annual % growth 1971 -0.17371046519460265 1972 5.015076927859454 1973 12.763920308385252 1974 6.495051178471641 1975 2.496904737604936 1976 -1.440041473410389 1977 -1.7304083024839372 1978 -3.9465528709864373 1979 18.446393538634283 1980 8.5516387500343 1981 -4.585320818587476 1982 2.2093210772456047 1983 4.112759019669724 1984 0.919377652050926 1985 6.361998198017815 1986 3.5248717586709972 1987 8.796254204927706 1988 10.872017716124176 1989 8.99189749387601 1990 -0.37343107084817007 1991 -13.320376219067782 1992 0.7007007007006933 1993 1.3598409542743468 1994 12.811862545112191 1995 8.18902566242437 1996 7.234917879985844 1997 11.881069416137152 1998 8.473531933133287 1999 4.2873725025314116 2000 14.862528713856065 2001 1.3834195822938824 2002 4.292919022247531 2003 4.108413766208457 2004 8.124812706023363 2005 11.181361510479817 2006 6.590324842252855 2007 7.381422202733319 2008 7.965697951405431 2009 -16.997617156473382 2010 6.3036378825852495 2011 6.20704436665001 2012 1.1233838743962536 2013 0.12505986908625744 2014 -0.896914613728768 2015 1.9629138007320819 2016 5.721461727615804 2017 4.313540137814371 2018 5.730570195311586 2019 2.3626398412125695 2020 -6.157524210340753 2021 6.133039047641418 2022 8.394725780403078 2023 -7.137390168484856