Year annual % growth 1961 1.2858581411607588 1962 12.269610219559965 1963 14.761580379681632 1964 -5.698343918907852 1965 -6.042676402212621 1966 3.217882582801664 1967 2.1375102769651875 1968 9.457742004780442 1969 5.044992743403583 1970 6.4551785129150545 1971 -2.318900771794546 1972 -20.091769124855063 1973 -6.025939476499943 1974 19.114351101004573 1975 -22.771296716848582 1976 -14.815859665392452 1977 15.447839828739362 1978 17.375997497886004 1979 16.849963342583735 1980 21.904055673113092 1981 16.757911812065984 1982 -38.30102729383979 1983 -15.034859046507862 1984 18.844605268674115 1985 9.97491262530275 1986 2.417911593250153 1987 21.71245838729405 1988 14.15270384049687 1989 29.99807174845506 1990 2.5168736338813744 1991 -0.17758797286055028 1992 24.02542908809518 1993 17.956014752966794 1994 6.186061452224152 1995 23.499735235184914 1996 8.918747765411155 1997 12.98472213189494 1998 3.537509105435575 1999 -13.516807710244564 2000 9.833347962992974 2001 2.242628613901701 2002 4.429381590465482 2003 8.548614439763867 2004 13.264819130490892 2005 23.082494585249066 2006 6.452513752125171 2007 10.571788731698547 2008 18.67519515412171 2009 -11.057593644638544 2010 11.106708019583195 2011 15.065945095417476 2012 12.010000384594633 2013 1.3215988283210152 2014 -4.053872083699758 2015 0.10696378317388167 2016 -2.3599835009401033 2017 -3.325286261475455 2018 6.492934716263761 2019 4.485533362462178 2020 -10.833704788149305 2021 15.955854250282925 2022 3.924402563652535 2023 -1.108878078284576