Year annual % 1961 4.805066571042886 1962 2.731756472612119 1963 3.813158900779001 1964 3.2259072311519503 1965 3.2231604455058545 1966 0.9350038336478121 1967 1.5181703132259798 1968 3.5166410946611677 1969 3.668964908671569 1970 2.5383246902467533 1971 -0.5863979862178184 1972 3.094964734836921 1973 2.4232486380538347 1974 3.100392686936786 1975 2.3924671239687854 1976 3.8217683525841863 1977 -1.3510126246159757 1978 -0.9886312218489621 1979 2.176766093314825 1980 -1.001197963584957 1981 1.2566747067869812 1982 0.8506992713989519 1983 -2.2823563119638948 1984 1.7040035109469471 1985 2.4559208215799515 1986 4.543150873740132 1987 4.657010915983733 1988 2.3840779911406003 1989 0.40986337147748486 1990 -1.4260619904121796 1991 -0.4564908212231984 1992 -2.1169235542597136 1993 -3.456599849124828 1994 1.075600034087003 1995 0.4143391727092762 1996 1.6542923639018596 1997 3.0005210011817525 1998 3.283270490526462 1999 3.9862582766008785 2000 5.253012634539317 2001 0.5741240438068189 2002 1.9312863431861729 2003 1.2636250277910221 2004 2.4729531153014506 2005 2.7400015603721357 2006 2.4157917678652154 2007 3.2195271907761622 2008 -0.36056867288715466 2009 0.18094256522462615 2010 3.2848576298424916 2011 1.2231203118121812 2012 -0.01103774165159166 2013 0.9345681882520012 2014 1.8630692470821089 2015 2.832079801800603 2016 1.023529730671342 2017 1.233342342268486 2018 0.6732040713773699 2019 -0.29566460916312565 2020 -3.864836211599979 2021 5.6886335143145175 2022 1.6302588383417742 2023 -3.483887946425696