Year annual % growth 1966 1.8912472308275454 1967 5.0395327803823164 1968 4.954105571745785 1969 0.29129270039096866 1970 3.7717578631289967 1971 3.496780538668915 1972 6.549297944769165 1973 -2.395529256107565 1974 5.456395973190766 1975 0.43210704297396774 1976 10.86444157401823 1977 -2.528562628128668 1978 3.249620638585043 1979 3.3807707990402065 1980 3.817137816698832 1981 -0.6486380845407069 1982 6.868624165509701 1983 1.1571710641155022 1984 5.681311146403516 1985 8.313085176537058 1986 4.81108055225576 1987 -0.8003933408741517 1988 4.337754941156376 1989 4.675525202298417 1990 6.7607762246638 1991 3.649979748361744 1992 4.451140719459929 1993 -0.46678188071066984 1994 7.6521204669463 1995 -2.436308906739157 1996 6.540235217234013 1997 -1.7743974678321877 1998 10.567015873415315 1999 -2.0669604666457815 2000 -1.5563507737363977 2001 3.87271074741291 2002 7.214164506425405 2003 1.6197005287768889 2004 2.460325186054064 2005 6.2860982263322995 2006 7.0590233288429545 2007 -4.038462050893813 2008 -5.946050110796193 2009 9.045490095327494 2010 3.298124854315958 2011 5.885283122969852 2012 3.039816125767288 2013 6.498399751055814 2014 0.5170144187752896 2015 -0.45549629607674547 2016 0.9473867862826495 2017 2.462044125542249 2018 2.6101592865024514 2019 6.4536682676606745 2020 2.8101339740846782 2021 -0.8568403832315994 2022 -1.1476284606086438 2023 3.803054776166519