Year annual % growth 1978 -13.727067134382978 1979 6.727276572453462 1980 5.948860704613338 1981 8.140324687267423 1982 -13.198843930448632 1983 -4.05929834496466 1984 13.594036619905637 1985 -9.735627707645321 1986 -5.5772891467483845 1987 6.845192008577399 1988 1.2145485611364535 1989 4.437200141288216 1990 -1.854706471549207 1991 -2.343104950018599 1992 -2.708168236139116 1993 -4.158165002656062 1994 -6.137780291682418 1995 6.849833599311992 1996 -7.866960278345374 1997 -0.9648649701722434 1998 -1.2899438425603762 1999 9.850356147543991 2000 -2.1855038145343713 2001 -2.614257224324774 2002 3.07275169399783 2003 5.867674159652637 2004 -8.145727849264034 2005 -43.765469446125074 2006 30.521766965428952 2007 1.6476599223380362 2008 9.659630879185244 2009 12.124682804715263 2010 -6.530135691555998 2011 -1.5861908094238402 2012 4.147902346527616 2013 8.397815202548912 2014 38.59962208691999 2015 33.863515867605855 2016 -10.529591490324776 2017 -15.386074748624551 2018 2.892376681614323 2019 -2.2590252052008424 2020 -14.484244946492282 2021 15.66872338576519 2022 -16.761833208114197 2023 -15.597075548334686