Year annual % 1961 -0.2014159264490729 1962 1.5963510262276372 1963 2.301983997367117 1964 5.191640077697883 1965 3.494471696584853 1966 2.559552894464929 1967 0.8129416499758264 1968 3.569449998328352 1969 5.505527195407666 1970 5.257050549063862 1971 3.712502570965384 1972 3.6259809001790444 1973 4.296977915007915 1974 3.682310048844897 1975 1.848665548006224 1976 4.060242775175809 1977 2.518466100043028 1978 1.7016239985290156 1979 2.598459073694997 1980 2.825564415168941 1981 -0.15055722657055526 1982 0.4319794574018516 1983 -0.632850100909252 1984 2.4761471473659924 1985 2.3573436790062914 1986 1.6860579400580207 1987 2.6366269583291597 1988 2.0441011594013503 1989 1.1043805845054209 1990 0.19514773425099463 1991 -0.6442296580663225 1992 -0.1699379907222891 1993 1.6768537971426412 1994 1.6453409051258063 1995 2.2444484693145057 1996 3.720141331042143 1997 3.5488945679177846 1998 1.13531333931995 1999 2.1120967314289345 2000 4.171595237854376 2001 2.1568627090330352 2002 3.1583359770429382 2003 4.376140647392262 2004 6.076915252794322 2005 5.647643307356034 2006 6.674212478019086 2007 7.291623129999337 2008 4.460324236641313 2009 1.62207633483294 2010 6.268579771582907 2011 4.785130069646897 2012 3.866197834010748 2013 3.8182620124875655 2014 3.4695481523898195 2015 2.988200628500266 2016 3.1375768010713188 2017 3.828617062496619 2018 3.6244029092012084 2019 2.766983806300317 2020 -2.44828134148716 2021 6.300275762249768 2022 2.7675624763334525 2023 3.35864145582066