Year annual % growth 1966 13.843203535180209 1967 8.785153461606399 1968 13.781428796172833 1969 9.466472910677098 1970 12.103588509897435 1971 4.8589312247120375 1972 -1.970028320598388 1973 8.696765227360032 1974 8.682267044380069 1975 -3.8310321330151567 1976 9.512465995836905 1977 0.7040079951841989 1978 9.347908579692302 1979 3.8065747494908493 1980 13.1738990673405 1981 6.268958544786813 1982 2.959193492122097 1983 1.1805995415695918 1984 1.2437913049555078 1985 -5.221172560038028 1986 7.641302603869278 1987 0.8156979647208971 1988 10.871086320179302 1989 -5.2363513536869135 1990 -3.3439326147946815 1991 -6.172971293881332 1992 12.41661064235251 1993 36.25908547080371 1994 21.42673868999816 1995 0.9054728128489558 1996 -1.3961043528146035 1997 -2.0105569347084327 1998 -6.3008951394157435 1999 -34.55635249355929 2000 -2.0188541102971413 2001 9.721867169458662 2002 11.11810069710721 2003 11.485962300880814 2004 11.13012732576992 2005 13.031139438223931 2006 18.7716726011776 2007 19.891251102184768 2008 -2.7154682814019395 2009 4.455270894582114 2010 7.104717178377868 2011 12.21196945693714 2012 3.3341362559717425 2013 8.479833200593106 2014 9.206544382300791 2015 2.8083101493793663 2016 -2.8900289747202095 2017 1.8542749056986025 2018 1.0368403513109712 2019 2.2364676153743943 2020 -23.62172766015017 2021 16.69607515856741 2022 11.49279000525425 2023 -8.921632404484342