Year annual % growth 1961 -0.4329019586904792 1962 -5.869568337819501 1963 -6.69745843740813 1964 2.9702941851414124 1965 0.9615405215777315 1966 -4.865005416511707 1967 -2.3744865728639724 1968 12.235550983211937 1969 10.293817503988919 1970 7.161780823183335 1971 0.31559456313823375 1972 0.7124895240742575 1973 -0.08456559349143333 1974 -1.0552196688481956 1975 2.6274774925668254 1976 12.393282730107074 1977 -9.847381113805383 1978 10.733864624062875 1979 -7.081904752949626 1980 18.154478400946815 1981 15.315334623165924 1982 41.676528764407635 1983 -9.54659705684243 1984 8.701625787369679 1985 4.701420998024403 1986 -5.3677154097615585 1987 -3.4192837762523567 1988 -0.6745351996901832 1989 1.5667821047815806 1990 -3.0885401707559765 1991 23.993314899194445 1992 -16.179640320064465 1993 7.066002834595281 1994 -0.00922891374834478 1995 2.7461653018830106 1996 -4.46264506429722 1997 24.98659924531445 1998 -14.893370449536576 1999 14.793007848853463 2000 0.8468108060466761 2001 18.477134155724144 2002 8.714430307996125 2003 1.8986584402661748 2004 4.744620150828126 2005 14.066068078834931 2006 7.9930721388397785 2007 13.754183319655638 2008 2.2162102944052435 2009 -0.36950959601824707 2010 4.209075821023717 2011 14.466715607526353 2012 5.417489100087963 2013 1.1633225245543173 2014 9.59774428723206 2015 5.0417018211224445 2016 -4.28633463558765 2017 -22.73343989755064 2018 2.9728380553132467 2019 7.063620144025791 2020 -15.344473560492617 2021 9.915254936562818 2022 3.430222435544522 2023 4.2859755614861825