Year annual % growth 1965 -4.781352828152706 1966 1.699999995019084 1967 1.3486052013578416 1968 1.6542121767042062 1969 2.6000806665299194 1970 2.040461011725526 1971 0.8992007959798229 1972 0.49651876230932146 1973 0.4518403767981738 1974 1.1518385809930578 1975 3.4120177061040238 1976 5.156132176876653 1977 12.634719563368549 1978 19.598262764517855 1979 10.505557874488943 1980 0.8728916044111514 1981 4.196106772374847 1982 3.847380069631498 1983 2.9230323182141973 1984 18.893889873305795 1985 -5.336451499773759 1986 0.36707017624399896 1987 6.1058898575559795 1988 0.604557301329578 1989 -0.5339090762476673 1990 49.82645191770072 1991 3.7882650475623336 1992 -31.65773392004796 1993 -3.231789211223173 1994 5.0718058632463965 1995 -9.858838508971672 1996 -5.745536560269997 1997 30.2716320628289 1998 7.553937991766219 1999 5.990855776441563 2000 7.7984683036428635 2001 -37.534123122467776 2002 31.736573186025907 2003 9.47020405173069 2004 8.791268260031543 2005 6.825797354893282 2006 5.967151679553012 2007 13.252854333722922 2008 6.682681042607015 2009 4.021461391173602 2010 3.516919798023821 2011 4.891126761095379 2012 3.8467198074812075 2013 4.552870628276409 2014 0.8036788634910437 2015 3.5333839351930436 2016 3.910461942848343 2017 4.477366171237705 2018 3.90807708861567 2019 5.426598557991653 2020 1.6311517708715684 2021 2.503152328035682 2022 2.994862338936926 2023 3.2301028695181486