Year annual % growth 1961 4.585943318197749 1962 7.318611241860822 1963 0.9112269772290489 1964 -2.563352900898849 1965 6.651719472952351 1966 0.9670683938005169 1967 1.7906722026043127 1968 3.368331506024731 1969 1.6094998543853052 1970 17.09945345459296 1971 -0.2439295265456991 1972 -3.0232292981136766 1973 16.66474976056726 1974 36.83072914833019 1975 -17.095054330671672 1976 9.188530835159952 1977 15.783634473720952 1978 12.871616333063841 1979 20.434547952135944 1980 20.509981231271368 1981 5.5908644891644315 1982 13.7539112686283 1983 9.002930311269623 1984 6.505901304945326 1985 -9.835962075566911 1986 -6.468884227456087 1987 8.473785549786655 1988 19.71473072147161 1989 25.701318162597303 1990 26.285529160412736 1991 25.209148451252418 1992 6.3739592139681065 1993 15.03522656860423 1994 25.63566297510131 1995 23.69806081405477 1996 4.88553388806929 1997 5.824575915193478 1998 -18.753847663459894 1999 10.563332541298578 2000 24.37453822126305 2001 -8.235038159506914 2002 6.185942990133412 2003 4.533770717194457 2004 19.63635865281688 2005 8.910841266473895 2006 8.170059537406189 2007 6.025964368701111 2008 2.339213091886137 2009 -12.731445619810216 2010 15.522702830102489 2011 6.310246053730253 2012 2.9120514964075426 2013 1.7238947860727052 2014 3.9890143146343604 2015 0.8031679340432021 2016 1.4341476437298013 2017 10.191799859572527 2018 1.4882651563020914 2019 -2.388098186025502 2020 -7.914272003602491 2021 21.185828128109875 2022 15.924392599120196 2023 -7.601919388010259