Year annual % growth 1971 5.1590177484279565 1972 8.639772743999785 1973 10.713374857756833 1974 2.34750262525705 1975 -5.812234916482453 1976 11.433300847104007 1977 2.9437208193831026 1978 3.6270611469261524 1979 9.212887050962763 1980 2.364529594175835 1981 -0.8473937947897383 1982 1.3652023671501183 1983 1.2929465614189013 1984 6.47066510290739 1985 4.836650248061375 1986 5.7188142748700415 1987 6.5372654656772085 1988 6.90634959921212 1989 7.708033632773322 1990 4.138244910602424 1991 -4.249234553686932 1992 -0.3036878534794454 1993 -3.3784778005457383 1994 7.407217127948456 1995 7.9311585167919105 1996 5.494038924724293 1997 10.123602714579945 1998 8.455732736190186 1999 5.7929372815556945 2000 12.19239578152444 2001 2.6427958036542236 2002 2.0166574450826857 2003 3.909433415758315 2004 8.432050102983538 2005 7.2829194614501915 2006 9.493686332678337 2007 7.717986247830041 2008 1.7831716441871492 2009 -12.310996259067949 2010 10.331181792635704 2011 5.915032298501387 2012 0.27201542855084426 2013 2.588961965931972 2014 3.2937737847155972 2015 4.742827505591023 2016 4.110138461251751 2017 5.585083188743226 2018 3.7290002789261507 2019 4.1375151935849175 2020 -8.434375954009582 2021 9.317341840881 2022 7.570603350107376 2023 -0.5525438446878184