Year annual % 1961 12.309794607477059 1962 -0.23136229449329448 1963 11.430811629879273 1964 9.013662941768175 1965 10.25106099134858 1966 5.711672120247371 1967 4.812395931146 1968 6.508586955982949 1969 11.156734958920026 1970 8.682288279235848 1971 7.374327142196108 1972 9.446391371893597 1973 7.602608093048914 1974 -6.7820857451826555 1975 5.37305705241242 1976 5.205082168205365 1977 1.610302150690643 1978 5.865271847345241 1979 2.0024576578189652 1980 -0.30689886759533636 1981 -2.432461477005333 1982 -1.740251973693887 1983 -1.6524025034368606 1984 1.503671609248073 1985 2.1122949646592843 1986 0.1857383045594787 1987 -2.5851236078829913 1988 3.909776912305645 1989 3.259729888364987 1990 -1.052232898346844 1991 1.8698347085252038 1992 -0.06629951824658065 1993 -2.1771501798919957 1994 1.4905589521162739 1995 1.6238248435133045 1996 2.409842880398088 1997 3.970082050931566 1998 3.320699442673302 1999 2.6781000701891884 2000 3.495563374112521 2001 3.5916527118377957 2002 3.5426227057315174 2003 5.542361244506424 2004 4.801378661072846 2005 0.3045681127545663 2006 5.335601690880594 2007 3.0109840216769044 2008 -0.5993897901543335 2009 -4.552117075974493 2010 -5.599550191470698 2011 -10.016281205198226 2012 -6.58290444947292 2013 -1.806551373413285 2014 1.1472119568182393 2015 0.46365278627018824 2016 -0.0724245841387301 2017 1.2922902902688236 2018 1.8749031634614397 2019 1.9868657665383722 2020 -9.121627046672302 2021 9.706769692662292 2022 6.997744731983374 2023 2.6576181784277395