Year annual % 1961 1.0954627602008031 1962 6.0148377022044315 1963 6.282815858833018 1964 4.9924411516419696 1965 4.681882177188072 1966 2.0372771847271025 1967 -0.7588374577597108 1968 3.1359161150041928 1969 9.013222989576121 1970 7.8456487160210315 1971 7.762224920487412 1972 2.9669289969062334 1973 4.322900353184039 1974 7.57494063102817 1975 -0.2582545567558441 1976 5.18522273714359 1977 2.779055479361702 1978 -0.16027338615676 1979 3.952529395776523 1980 3.757947781925324 1981 -0.8159593893567632 1982 -1.2002541795094572 1983 -2.5794052659420004 1984 2.2472074893868665 1985 2.007438966412195 1986 1.9025059838385658 1987 2.951706733773335 1988 4.448831504145872 1989 2.31391825638876 1990 2.3541027516727837 1991 0.34968215555470294 1992 -0.39997482088496383 1993 -0.8928927044007651 1994 0.9806027588555253 1995 3.3188879567217526 1996 5.130876871835113 1997 4.0824004654031825 1998 2.502329777473534 1999 2.2046139297900567 2000 3.47812372745004 2001 4.198461361042575 2002 6.3311647505538815 2003 4.050089792638474 2004 6.601960919577721 2005 6.01887916401725 2006 6.055864143965522 2007 6.162242170075444 2008 5.189440688244744 2009 3.180480861618335 2010 5.995572686734761 2011 4.414404933973685 2012 3.2582484402080496 2013 5.0904405483495765 2014 4.8707602196872415 2015 2.920373882748592 2016 1.2420371763505642 2017 2.4842832882704897 2018 2.7549670578424212 2019 2.6597450502833055 2020 -1.9668948269271596 2021 4.2649368924924715 2022 3.6605624227504734 2023 2.955095532128155