Year annual % growth 1969 10.668943964502859 1970 -7.734762702548835 1971 5.675683598473682 1972 4.762339008938383 1973 8.85837899407582 1974 8.245544630589222 1975 -8.900788654195651 1976 -7.931852765686955 1977 -2.1167318111850477 1978 -12.657848285457419 1979 -5.787772731183438 1980 3.515782443519754 1981 1.5495370818836847 1982 -1.5243003293559383 1983 2.8861117181575366 1984 7.987200858376127 1985 5.794967299877513 1986 4.271621749162136 1987 2.396647651472321 1988 -2.236662229174925 1989 -4.083394785081936 1990 -14.64379460129905 1991 -21.483768730390366 1992 -27.55905875598083 1993 -12.228261577450922 1994 -7.430335055120992 1995 11.371235208023208 1996 -2.800001986655573 1997 -21.799999017624643 1998 -14.400003460202356 1999 16.600006725407425 2000 -10.900000723232338 2001 -14.13703382480486 2002 4.309764309764304 2003 -4.465246395523991 2004 4.313548823065673 2005 0.42010364931979893 2006 -4.789957950351095 2007 7.154952401484451 2008 1.582056665612825 2009 -9.872508382819817 2010 -3.315300703219364 2011 1.7854000059021047 2012 5.221413631006769 2013 10.053627649814459 2014 9.935568548939557 2015 13.732324833810594 2016 8.645523090446858 2017 2.4744559540723685 2018 -0.846508346975611 2019 6.112514853188628 2020 -7.207679663064326 2021 4.111822660884769 2022 2.434980900962543 2023 2.6136556615281137