Year annual % growth 1961 5.493334614419098 1962 8.3480762512784 1963 5.762615690701892 1964 1.3456107975603544 1965 6.513959270682548 1966 4.179257125077029 1967 2.6149040594094117 1968 3.3353626720427485 1969 5.0246181046186535 1970 9.428216532302187 1971 26.23214939352853 1972 -4.72239948765079 1973 10.183888447634644 1974 -2.296150977472493 1975 2.307692310211735 1976 3.7925696587819573 1977 4.740598696929027 1978 9.16395443519616 1979 12.391689187771718 1980 12.666832463248994 1981 3.721212564572312 1982 4.644687606762247 1983 -0.5999389903006431 1984 4.122621566044813 1985 4.49975437847921 1986 1.3992917365413433 1987 5.5925576787784195 1988 9.85072442661614 1989 5.622094029497802 1990 3.08775116315239 1991 3.2497644655727527 1992 10.563488772392148 1993 3.4351922297588118 1994 15.228384315666332 1995 7.256962059719996 1996 23.939401685205013 1997 15.756658600600687 1998 2.055282511103968 1999 3.6374918683270323 2000 -0.28053484946052265 2001 2.215183008554746 2002 -0.5709797938165337 2003 1.8209764538340352 2004 6.390472995614232 2005 5.177358614827682 2006 5.213499111900546 2007 4.5689049754200255 2008 4.697327805545854 2009 4.762903384979779 2010 5.225787459523119 2011 6.476953549007973 2012 4.807096089373729 2013 8.895462521935315 2014 4.676046999889508 2015 4.850713443707448 2016 1.8240091284357476 2017 3.6428206522634667 2018 7.351549891479763 2019 5.274383470339927 2020 -0.7604535989644887 2021 9.81846020798038 2022 0.8488142420056448 2023 0.899224030062669