Year annual % growth 1961 10.575950938194879 1962 4.371319734631513 1963 5.812642535994513 1964 -4.164268910614268 1965 4.521380200814292 1966 7.866501581287807 1967 9.007207969443826 1968 10.857372249182333 1969 10.164003156118937 1970 13.860503536328238 1971 12.612646936922943 1972 9.81258580245337 1973 7.706786116061878 1974 5.919035497185149 1975 3.1531902088807158 1976 5.2015813945372855 1977 5.7669952896801675 1978 7.2874668919937164 1979 5.535820350339321 1980 6.382369717518728 1981 4.946561638198645 1982 5.539465625654188 1983 6.439057781167222 1984 5.763432093754517 1985 3.8942015643524996 1986 3.238498656470128 1987 8.29813212085368 1988 8.0008319595253 1989 7.914760111170466 1990 7.9995096739661875 1991 6.495935759688052 1992 5.307958301783543 1993 12.390337696834507 1994 5.971178476365992 1995 4.917441199465756 1996 8.215549017861917 1997 5.8790282638704525 1998 -0.18539224147174593 1999 9.065216070681046 2000 14.451412776045785 2001 7.463237862726473 2002 3.684541746400498 2003 1.2074170350945934 2004 4.404857168927066 2005 4.080317574218583 2006 4.9678001008055475 2007 6.061971912592838 2008 4.684879624139995 2009 0.7610449435466506 2010 5.53903880633699 2011 3.0883205670652245 2012 3.146617130307135 2013 4.525850500717922 2014 2.9879108011680984 2015 5.915630022323555 2016 3.332227744623964 2017 3.2121242249954776 2018 4.016483250454314 2019 2.8514969109236574 2020 -7.3686387253133745 2021 6.940323141045894 2022 5.54064014730271 2023 3.4702696336342314