Year annual % 1961 -1.3008645513870931 1962 3.446280932669012 1963 3.675577277644578 1964 2.3764940648899824 1965 2.0402479861133997 1966 -0.5354678267278246 1967 -3.2721464198470045 1968 0.4858303127703181 1969 6.188973513100791 1970 5.024324616862302 1971 4.927974733117836 1972 0.2682397982197955 1973 1.537931367780601 1974 4.617698828476165 1975 -3.0317010426937117 1976 2.2621257335172515 1977 -0.04332642268146003 1978 -3.0039931623110903 1979 0.9015653429473218 1980 0.8176030891930282 1981 -3.6575414704994813 1982 -4.110829144740961 1983 -5.3197099077964936 1984 -0.5458466744064907 1985 -0.8320934573314247 1986 -0.9665555858880452 1987 0.028512506627720313 1988 1.5607759459707893 1989 -0.4860633917092656 1990 -0.44187154650978755 1991 -2.313986897314763 1992 -2.992365119357686 1993 -3.46427714985073 1994 -1.6015852193882836 1995 0.6481267854625798 1996 2.3760827149542223 1997 1.4212443130105328 1998 -0.09292087445848551 1999 -0.4032792807271335 2000 0.8065469525047888 2001 1.484571282575999 2002 3.5468072840413356 2003 1.3167884690682854 2004 3.780167724279309 2005 3.1945981030996933 2006 3.212223170136056 2007 3.2907838061714756 2008 2.3313718420466643 2009 0.37844771093836016 2010 3.114754322660488 2011 1.5872353125425462 2012 0.475317334026613 2013 2.255151078905442 2014 2.0489484285326682 2015 0.14587819862012452 2016 -1.4407845997615283 2017 -0.18688433550583738 2018 0.07240817971070612 2019 -0.008017072379914225 2020 -4.500358601039622 2021 1.6290194481904763 2022 1.0906810973911405 2023 0.4093739891552559