Year annual % growth 1961 -6.873614189746931 1962 -19.523809524830114 1963 0.5917159756255046 1964 17.647058824664995 1965 -27.499999999941394 1966 38.96551724164689 1967 -11.166253101153842 1968 13.407821228611311 1969 3.694581279815438 1970 16.86460807707286 1971 7.723577236028007 1972 -1.8867924540986678 1973 36.53846154005669 1974 -10.4748603354722 1975 30.343213727969186 1976 7.324955117397991 1977 16.471506635259956 1978 10.695135965715295 1979 16.339417006210596 1980 10.750929361842935 1981 10.163802364126084 1982 8.23278489179225 1983 -0.9684139451327667 1984 3.4132692860663525 1985 7.640368730937226 1986 2.781608684737023 1987 -0.16880741776245145 1988 7.572325133323062 1989 10.489404793383201 1990 3.2101264900405795 1991 7.0281780984196445 1992 5.831069870416044 1993 0.08346985030655674 1994 2.3050271018290545 1995 1.3402271833641777 1996 2.692978417448444 1997 0.06123466805745181 1998 -15.371536364688652 1999 0.694799068500501 2000 6.491006616572093 2001 7.563695408070743 2002 12.993466194088938 2003 10.033661550971715 2004 3.9904368944829542 2005 6.635240642473761 2006 9.610453159179528 2007 3.893873427274272 2008 10.428276763374768 2009 15.674944773325066 2010 0.3239606594410418 2011 5.518427288171708 2012 4.52670228309438 2013 6.7456430843874955 2014 1.1639049626937776 2015 5.312477573321942 2016 -0.14101903198206855 2017 2.124728286917275 2018 4.820725297606572 2019 3.267844748616568 2020 2.124224083131594 2021 4.25262600970342 2022 -4.472796180178364 2023 2.945026714776816