Year annual % growth 1962 0.576933816069868 1963 1.2416031664070886 1964 7.653868194886698 1965 -5.097788191379223 1966 1.2932901530325296 1967 7.4506572422632615 1968 2.303381596184977 1969 3.7244749049848167 1970 4.484270177947124 1971 0.9468670087803019 1972 -1.0198328193502704 1973 3.9624200793168853 1974 2.0132740296464675 1975 5.212286812458572 1976 0.9379811284506303 1977 5.02327557404854 1978 3.002398114674037 1979 -3.8826310300916163 1980 6.380395499105475 1981 3.9157904561874375 1982 1.0904883206531224 1983 4.627836437382186 1984 1.8378305705312812 1985 2.072377517431363 1986 1.957150103365251 1987 1.0563953906223844 1988 7.893637910559619 1989 0.9353050585986438 1990 4.11200798429347 1991 0.7745085679157881 1992 4.370228516219868 1993 1.974498214315986 1994 2.437383779638509 1995 1.3133540347192394 1996 6.238289708485439 1997 -0.26307498728823475 1998 4.256234471492306 1999 1.729482377037428 2000 1.9171055359997524 2001 3.30031540235494 2002 -0.35740446298774486 2003 5.1120012899595935 2004 2.1257309323269737 2005 5.249720580207338 2006 3.5788114084682974 2007 3.6360519311157873 2008 0.7581149785885799 2009 1.2680934771389474 2010 5.97974227156908 2011 4.433459460727846 2012 2.412356385308726 2013 4.675754001583925 2014 1.8074506204068967 2015 2.3692237784804178 2016 3.399824402866301 2017 4.573822274896216 2018 1.973554436407852 2019 4.391653719491799 2020 2.6969445176987676 2021 2.6452424379794053 2022 3.193259075874778 2023 0.9267393805527604