Year annual % growth 1976 11.177457099704043 1977 9.836064238675874 1978 14.516285025864434 1979 12.310568578226238 1980 6.433576433587575 1981 4.809600574493359 1982 -0.5279458874453979 1983 -0.6494379173156375 1984 10.472456145432659 1985 7.622934522321884 1986 1.9887762601608472 1987 13.477087993762098 1988 25.156851787161997 1989 22.732389578381003 1990 10.470171317520922 1991 -5.62434907339275 1992 -13.752913586208678 1993 -2.765842738028354 1994 5.119625240725796 1995 13.125712970294188 1996 -4.935139511128199 1997 34.89144253680706 1998 14.957456928536047 1999 -3.5858678165548525 2000 -1.9364355517293035 2001 -1.5263781013466655 2002 2.0010815927794283 2003 -7.300212853660199 2004 17.617602887113804 2005 -4.93568083117745 2006 0.04415681967788032 2007 32.40376132689792 2008 39.68456333202755 2009 -8.57401187149513 2010 11.0200752761111 2011 11.106791932166033 2012 25.2589786322677 2013 14.307653110696279 2014 -1.3197008261818866 2015 5.836095011290993 2016 -20.921631198848416 2017 -12.948886493275822 2018 15.9167143477638 2019 11.572187598649933 2020 4.950873084781307 2021 2.3431678368813067 2022 -11.738681967590807 2023 -9.883672297106855