Year annual % growth 1966 -1.3840519659238026 1967 4.390380400531811 1968 -1.5168261537789078 1969 -1.7082017675282941 1970 -2.955843303807896 1971 4.528436229133945 1972 27.285502156817017 1973 -16.935132936819997 1974 23.40949443758285 1975 -1.0708746264608635 1976 10.356831239664416 1977 2.025828724085983 1978 10.802449280290588 1979 6.269896907615589 1980 0.9395621198418525 1981 15.035364659348872 1982 -0.6854857920877748 1983 -2.1845113571477555 1984 8.693124630356294 1985 -12.589096620922021 1986 -18.697602439299985 1987 -1.751660531106637 1988 -12.231007096601218 1989 31.69879576800443 1990 21.386514370673467 1991 -0.6421651963382118 1992 19.781353253812412 1993 -2.287469207614947 1994 -12.78601934873086 1995 5.028289788823898 1996 10.94115900055867 1997 5.234559046816443 1998 4.421514379187002 1999 3.9700627331800575 2000 2.596820386089931 2001 12.370386226180855 2002 -2.9559199558751175 2003 -1.4907673035992843 2004 1.2449916158405756 2005 2.046373277599045 2006 8.150225011636053 2007 6.915019734973328 2008 3.9833940616089762 2009 5.534185279418963 2010 66.65876633100004 2011 -12.564724919093848 2012 3.9881558249282847 2013 -12.54671649759743 2014 3.9733414733414776 2015 -4.477173753486312 2016 -2.571457842434171 2017 5.767613038906404 2018 9.549137545359642 2019 -12.060985570378435 2020 -34.422084623323016 2021 21.638209143126915 2022 0.8991525971925824 2023 -10.969355045518654