Year annual % growth 1976 30.321887727773856 1977 15.537879814909104 1978 8.62067871815701 1979 9.079370826685945 1980 7.9743835071141405 1981 6.361180018831831 1982 5.980749286504434 1983 1.9129563552058357 1984 6.428902691124819 1985 2.2486857656219996 1986 0.3018402970629239 1987 8.039554941313583 1988 6.804625869901599 1989 2.645305721412285 1990 4.029035343575686 1991 0.8025181898028535 1992 2.6306552553715647 1993 -6.003369385185593 1994 2.978102994098535 1995 2.2943705510554793 1996 -2.179734607586852 1997 1.1882700375041395 1998 0.8824651829180965 1999 0.16126337368984878 2000 -2.4777518705672463 2001 -2.3623484913277366 2002 2.132507376721634 2003 2.723231451063455 2004 0.16970618034449103 2005 -0.8590809435374211 2006 -2.711610472739352 2007 1.438890134975452 2008 3.5382067750859107 2009 -6.867503517695724 2010 -2.38457796881049 2011 -9.022461581015449 2012 -8.74493094459919 2013 -16.519926311354126 2014 0.8827094013833516 2015 7.969701288916937 2016 14.483868795042781 2017 14.291110062585972 2018 16.632915588674052 2019 7.807309996495675 2020 -0.8889452934698596 2021 -0.7939012522325868 2022 1.6580506766772203 2023 2.409199371876497