Year annual % growth 1966 8.983851133155383 1967 8.660028678388471 1968 13.175548451137573 1969 11.235021525783353 1970 10.680117388841609 1971 20.777188857876766 1972 18.73222457308796 1973 5.380311136635569 1974 42.669409028618816 1975 22.977713246868788 1976 11.8464345595942 1977 -0.9977860098084363 1978 1.4409816178100527 1979 -0.8544988605315069 1980 -6.502116939031694 1981 1.0572491908730228 1982 -0.03318201279097366 1983 0.6981363550207647 1984 -2.369378381617537 1985 4.381648533655039 1986 -11.182998637282708 1987 -3.9240295081316106 1988 2.4996584923580514 1989 -2.7811716688409405 1990 2.4362093139801857 1991 7.07300728759806 1992 2.8198879569883104 1993 8.311375944486215 1994 2.3614135992776397 1995 -0.6017279840205845 1996 1.4799134986049296 1997 1.498732214108685 1998 3.7331804327568108 1999 -0.8403655697111105 2000 6.610806935257955 2001 3.284181047528591 2002 3.967545925667949 2003 2.989813586186216 2004 4.790375388736763 2005 3.0132446435449367 2006 4.9791812970065195 2007 -0.624843571625675 2008 2.9863860102696123 2009 3.447910597128228 2010 2.294851904317767 2011 8.162921541587508 2012 2.872131459640343 2013 3.2491552010721136 2014 1.8691138787241073 2015 -0.7995447403647944 2016 0.37953877673642467 2017 -0.5726311358846345 2018 2.4727289563330856 2019 5.57251848574964 2020 -4.0755510899728336 2021 5.927763591463403 2022 3.714190178137457 2023 -0.07618630874334542