Year annual % growth 1961 4.36482224314048 1962 3.780988935054225 1963 6.822473425461624 1964 6.949812455324974 1965 3.9936331927119824 1966 3.095392604750799 1967 1.858994872606587 1968 8.009644021629441 1969 0.5611168930390846 1970 3.8615161780542593 1971 -2.808303131139411 1972 6.030150795556395 1973 10.900474098257646 1974 -2.1367520633561554 1975 3.9847124213861207 1976 15.433078126155337 1977 13.960882262995085 1978 2.7927317614482803 1979 -1.2799177720131212 1980 7.823694191725124 1981 0.7311185193700425 1982 1.9537580170269138 1983 -1.490966889789334 1984 7.426766356839295 1985 0.3025110532884838 1986 5.852701733665171 1987 1.5182609735200998 1988 2.08631822731644 1989 5.2755027492598145 1990 0.34698126301179855 1991 4.995632234112264 1992 2.1718406045794154 1993 4.385369660367104 1994 0.46480635777088253 1995 1.6937088503162556 1996 5.222384830745725 1997 3.14148789816619 1998 4.511542689629906 1999 -0.868126165799481 2000 6.754994058061243 2001 4.540364464269857 2002 4.1833154169117535 2003 4.402517253798763 2004 4.978963439506771 2005 6.139210503235631 2006 8.690026672245168 2007 6.0713230574393435 2008 2.9922338553102037 2009 0.07047210141639937 2010 3.648588337510276 2011 3.6004107184260334 2012 4.27481591878292 2013 3.767724223813417 2014 2.5553956965345606 2015 3.901622437838043 2016 3.9994852309635007 2017 5.202135492617458 2018 5.53412109053879 2019 4.765271023019068 2020 -7.638843173397035 2021 16.83194591254444 2022 5.736882957717711 2023 4.339178352325916