Year annual % growth 1976 17.71602819753602 1977 19.193046505671745 1978 7.632792935223122 1979 11.90803539972363 1980 6.401377147449168 1981 7.6076117118509785 1982 7.393215107573184 1983 6.26161475237781 1984 11.037659668667857 1985 6.329970932090774 1986 5.021015735327225 1987 7.137026698629413 1988 8.857448876862705 1989 10.787732425765185 1990 9.969237032868008 1991 2.391652807354788 1992 10.145237313626865 1993 1.967809966840008 1994 8.084958124513932 1995 11.80819936916464 1996 2.0254294829637587 1997 4.706878848075746 1998 6.93068079233359 1999 5.679261477793233 2000 8.020038769195352 2001 3.3609183920431605 2002 2.965800372484395 2003 1.5955517951923497 2004 4.7017850369432495 2005 5.708921805760355 2006 5.630827727495742 2007 5.248170293498916 2008 5.326203593931126 2009 0.9706557631609343 2010 3.850717892678773 2011 2.1469693034658803 2012 -1.9979761952914998 2013 -5.339781443030617 2014 -0.8860676714098474 2015 3.2778945790045526 2016 5.192343500391445 2017 5.543747003360224 2018 4.618313935344489 2019 4.90876049093383 2020 -3.5190181086551746 2021 11.858462494652173 2022 6.059220983489325 2023 2.3838715426092847