Year annual % growth 1961 4.901664641407621 1962 5.390814771518436 1963 5.516061118883059 1964 5.351968376148889 1965 2.8901070116877747 1966 3.135356555731434 1967 3.674120252782018 1968 4.417195904225764 1969 4.961139340674066 1970 4.72812920459431 1971 3.877233890660719 1972 3.0860969561156963 1973 3.300721942319143 1974 3.7651345452004676 1975 6.098824606990789 1976 4.601953483379106 1977 4.650680333828134 1978 6.296026407303728 1979 2.5933446435429914 1980 3.450051112964573 1981 5.676643016533006 1982 7.495287593745047 1983 6.412670072780216 1984 6.576133788824691 1985 7.831989524288389 1986 8.050210692534463 1987 6.8808791000156475 1988 7.362890914408112 1989 8.746023121194682 1990 5.549611764969242 1991 5.427778725373628 1992 5.875502660443715 1993 7.7491406729359085 1994 5.05222775927993 1995 9.168081962672048 1996 6.755892874491806 1997 8.996028188473801 1998 8.21449070624493 1999 12.494948343679638 2000 5.105632873324666 2001 6.24816078710208 2002 6.348460920435457 2003 7.35118906308692 2004 8.259221522818308 2005 9.117631788298937 2006 7.038321568188508 2007 7.778045089974128 2008 6.519914120142815 2009 8.676469828187393 2010 7.835665991229533 2011 5.864008315199669 2012 8.333677143142793 2013 7.659995074237841 2014 9.810593093347194 2015 9.438240947556338 2016 8.463063848752512 2017 6.3430628988345745 2018 7.17191387869174 2019 6.4295075793580025 2020 -8.351572985514679 2021 9.175499166340288 2022 10.01477895106035 2023 7.496359547959486