Year annual % 1961 -0.48932578742928 1962 -0.39215360521779985 1963 -3.5530335227949053 1964 1.315105343716155 1965 -3.016074336024559 1970 2.499703377449137 1971 0.5622099956534612 1972 -3.7965483710414105 1973 -5.676188456340782 1974 -1.4903527499945426 1975 -1.538622980243062 1976 -5.924262023108966 1977 -0.10789572269767689 1978 -5.474437513930056 1979 6.32989613854329 1980 -2.480304901564537 1981 -13.27405777200913 1982 -4.754763752964763 1983 -2.4123942547589934 1984 -2.3188132641288774 1985 -1.3032659914198206 1986 -0.9589440811974725 1987 -3.48527122267015 1988 0.35885626110889746 1989 1.1041268819036247 1990 1.8343830528465617 1991 -9.772138007068747 1992 -0.8562694238563751 1993 -0.7938009045397791 1994 -3.787532695702481 1995 -1.4305383299334125 1996 -0.06174800531226765 1997 0.7143868184225113 1998 0.9291905612340372 1999 1.8536247231424312 2000 1.6700066763191614 2001 3.0440443945940103 2002 -14.928621633349422 2003 6.6519689909947886 2004 2.5751772103321997 2005 1.0675090947600978 2006 2.1254570876550787 2007 4.061262188479688 2008 3.7181590220123297 2009 -7.249096052762511 2010 -2.5411984686079307 2011 -1.3036860113570583 2012 -1.2559674114005759 2013 -0.6325761848640923 2014 1.4101981396532608 2015 -0.6903765124695127 2016 0.9831858057693665 2017 2.377732537506745 2018 0.2936914834437516 2019 1.756159991176446 2020 -8.553601194305628 2021 4.2431889301041394 2022 0.7708054490378657 2023 1.8664581825681665