Year annual % growth 1963 3.8847694352220685 1964 2.2792353048882745 1965 7.569612345885162 1966 -2.358698631949423 1967 5.084718895742554 1968 -0.8209395559142081 1969 2.3567334891716882 1970 1.853419779808334 1971 6.765498120807905 1972 4.859170570431729 1973 6.559127422297209 1974 9.669138777341033 1975 9.738202664871125 1976 3.8544423520894497 1977 5.557507965938882 1978 4.4769463159118175 1979 7.118075907504988 1980 8.135019413189639 1981 10.60059582006889 1982 0.6304235118831798 1983 -2.3192838260540753 1984 6.370973506495048 1985 5.230368478887584 1986 -5.068060216836685 1987 10.068583764397516 1988 12.913052891265366 1989 10.080760184123179 1990 1.919105647814817 1991 -1.1377560333152417 1992 4.506930636290889 1993 6.84611233183719 1994 2.7016192156564216 1995 13.315818545462733 1996 -0.9224375242774414 1997 7.38768221519355 1998 1.4812597108897307 1999 0.8847645610913446 2000 -7.098879691363109 2001 11.595456280985843 2002 4.584699102113191 2003 9.54982565451543 2004 4.769549068129891 2005 0.06063883879880905 2006 4.70565743269195 2007 15.598109502949242 2008 9.89326521305496 2009 -11.68000819408762 2010 41.766955412580415 2011 5.676427296682874 2012 -29.783984227461673 2013 43.534694901396335 2014 7.179939334295213 2015 -1.44082713369572 2016 2.696169956300352 2017 4.935437945223043 2018 2.1992682971251725 2019 -3.385884265406048 2020 7.4424166016308675 2021 -12.276633569952978 2022 -8.699050754360911 2023 16.984876443215242