Year annual % growth 1967 7.025327543245297 1968 4.1205168093554505 1969 6.044282275560661 1970 3.460025105148887 1971 2.294762577883901 1972 1.3370238532796748 1973 5.820344138509142 1974 -1.1144346816034414 1975 1.9015647837968146 1976 6.5913341181265395 1977 1.8718385214107798 1978 3.159912525902712 1979 2.3432264456277494 1980 -0.5094945978372323 1981 0.009258531364622513 1982 2.0308978275504614 1983 1.2368849463617408 1984 1.7568324012166414 1985 3.7553409712803614 1986 5.104360507289755 1987 -1.126555151553049 1988 -1.2710751265843498 1989 -0.07767652486033683 1990 0.039065437620308785 1991 1.6347342642696105 1992 1.9408976780370182 1993 0.8074400688312267 1994 5.105500189356675 1995 1.8331936853994932 1996 2.6465076736044324 1997 2.1552164898934763 1998 2.588443785003932 1999 0.9818015261487005 2000 1.2349560256944159 2001 0.7921822654018484 2002 1.6804303648897587 2003 0.9562144524170861 2004 3.5655989896926883 2005 2.8430536476455472 2006 2.8092457796869468 2007 1.5768264743247755 2008 1.426666450563701 2009 -1.1956018561890716 2010 1.0835054857812167 2011 -0.05401803588380005 2012 0.5999081444806365 2013 0.1447444757474443 2014 1.273012199407205 2015 2.069222129427459 2016 1.6260582912274657 2017 1.7985421895014326 2018 2.29413252832164 2019 1.3266014075482104 2020 -1.4946326124726994 2021 5.172925105486854 2022 -1.903207601088738 2023 0.7105903861712903