Year annual % 1961 -7.774634903716546 1962 9.457358740721261 1963 8.778340216211845 1964 4.964467288440915 1965 2.009094171030995 1966 14.728566401568727 1967 3.361232032585562 1968 7.982689969347902 1969 7.959224459495601 1970 -4.655446916476208 1971 22.17389192557644 1972 17.082429349983002 1973 5.896580210166718 1974 4.0656173489373515 1975 0.8822031753191482 1976 2.153964503225609 1977 9.453797844080867 1978 6.91249354626197 1979 7.615226045919826 1980 5.591976205967697 1981 3.7735441940282186 1982 1.5064782575770579 1983 1.3090502411485971 1984 1.7552169770347348 1985 4.300561818796126 1986 7.177555390659634 1987 5.937107444208948 1988 6.203183823145906 1989 4.690348767920469 1990 4.192050971551666 1991 1.4383467917155883 1992 -0.7994939586413494 1993 0.3531972562272472 1994 2.6327845178369955 1995 4.406216524822867 1996 4.146839268760132 1997 0.4749019212935792 1998 3.2902137224906483 1999 2.305388595224116 2000 0.5996953908074261 2001 3.7799064979534336 2002 0.5468595301755954 2003 2.932475545709039 2004 5.104299776297381 2005 5.906666079800573 2006 6.472494300154835 2007 6.8507297699878364 2008 0.23228274481297717 2009 3.306939816310887 2010 8.05847360290906 2011 5.121106119705601 2012 4.56867961444982 2013 3.7978483925754034 2014 5.020111002324839 2015 4.96772112759767 2016 4.213517068147439 2017 3.837958173647209 2018 5.647946407092192 2019 5.114158857678007 2020 -0.27276632743881635 2021 7.590489473334671 2022 4.846634855770702 2023 5.425816151303039