Year annual % 1961 2.5239220961769604 1962 4.880243675286408 1963 2.6714349174530128 1964 9.660978354856667 1965 4.453891664340134 1966 4.4421888998453625 1967 3.241890281561723 1968 4.236629235751906 1969 9.11139075397962 1970 9.728796548913124 1971 10.53919518428566 1972 13.385118032930208 1973 15.272583454608053 1974 6.087614078404883 1975 20.13334558292439 1976 21.02292465521711 1977 13.268598738692859 1978 10.526446797649712 1979 13.676060983167716 1980 14.704795920456377 1981 17.442549580708743 1982 15.182152520572217 1983 10.708880698269454 1984 6.379271693465043 1985 5.186329184412045 1986 6.549696309535918 1987 2.19740851204196 1988 3.2463123572466657 1989 5.52176590092688 1990 -0.729184240461521 1991 1.8013946939059196 1992 2.8122218740678164 1993 5.175752147443674 1994 1.6945308600453899 1995 3.033996620401851 1996 2.2922523792224325 1997 3.9292599950264844 1998 6.552780856817847 1999 4.376193390321205 2000 6.874950285940699 2001 6.859686060934877 2002 5.186903513259409 2003 3.911730084734529 2004 0.5153367383451837 2005 3.073211174342802 2006 3.4198976808365416 2007 1.198488061312304 2008 -0.5045256422392015 2009 -4.6245981552748106 2010 -2.889836297706225 2011 1.3497181548485742 2012 2.1082729746665763 2013 1.13326028645875 2014 0.18200739255802034 2015 8.300141347611032 2016 0.5838490826316871 2017 1.2510834681650067 2018 1.1200322362665105 2019 3.3554115226408214 2020 -1.2340426297853782 2021 0.47748255142940366 2022 6.582264283093835 2023 2.965219701464889