Year annual % 1961 2.7204695710848767 1962 1.1044730065379156 1963 8.19351872014316 1964 5.189369801525359 1965 5.21121540637661 1966 10.042440052548088 1967 7.873237620697225 1968 10.538661203939142 1969 11.555650985597453 1970 5.724678567024185 1971 6.846512642961173 1972 4.388644797501357 1973 12.417583588304922 1974 4.646219755027573 1975 2.7062870262182486 1976 15.303630666719997 1977 12.094584473783215 1978 10.716638340267991 1979 6.092815628570008 1980 -7.074497024819564 1981 3.910365044954304 1982 8.103508816674562 1983 12.336801143813034 1984 9.171013203494823 1985 5.771662912381331 1986 12.829044880254841 1987 13.811236206341164 1988 12.283552201357864 1989 7.6888246624795755 1990 8.396157000736835 1991 9.825744850317648 1992 5.03239506411532 1993 6.131213185315374 1994 8.289125933351244 1995 7.676147085674728 1996 5.640884608704397 1997 3.0775841008861846 1998 -8.337779916994066 1999 9.928983844809508 2000 5.585269033138857 2001 3.16885800406304 2002 8.005227222479647 2003 2.1396721433266634 2004 3.885796909789036 2005 2.2075264920471653 2006 3.439964968546434 2007 5.15464896482753 2008 -0.3788292042933534 2009 1.9518103806635168 2010 6.674869231102349 2011 0.8493151851304788 2012 2.38648276016103 2013 3.373234708972433 2014 2.8436261703636205 2015 5.756379681227315 2016 4.000851151573201 2017 3.00342052892546 2018 1.1401776369075662 2019 0.0023760449805081407 2020 -0.0813427676406775 2021 3.625162376861141 2022 -0.5028274655512774 2023 1.750130469423226