Year annual % 1961 14.037070864503036 1962 2.7424631464336215 1963 5.6045972464346505 1964 7.630499772102482 1965 0.6938502811945568 1966 4.056821560676681 1967 2.0425177148052143 1968 5.215141614900347 1969 2.7306846100350697 1970 3.533635677972242 1971 1.040335827819618 1972 5.780346819139353 1973 1.656420766420453 1974 3.8076040085693705 1975 1.477965371235527 1976 6.405145378665054 1977 9.121790387657967 1978 10.01648049790127 1979 3.599367509756064 1980 10.390810137282998 1981 4.577208558429959 1982 3.7993180714448442 1983 -10.300328484294198 1984 -5.750906170058514 1985 -4.119419554372399 1986 -3.279163047992668 1987 -4.561778538113941 1988 -3.9197240505039446 1989 -0.8299142122316994 1990 1.5091678429517685 1991 3.112407865755884 1992 10.092979512968995 1993 -0.6691147664593302 1994 3.567180605819516 1995 3.8099131436476483 1996 7.134477464808711 1997 7.522854626275176 1998 8.124563996545803 1999 8.024817643500626 2000 6.901359590728035 2001 4.168523981854236 2002 7.936709687153325 2003 14.44098953897344 2004 7.950051510699723 2005 6.20893787954175 2006 13.208058605173491 2007 4.75420970092722 2008 3.3917370780738736 2009 -4.391729247461399 2010 3.3232247102737063 2011 -0.29435440904376264 2012 7.446820893266647 2013 3.531787373296382 2014 3.8536354828907946 2015 -0.7774599522314105 2016 -7.527137422488067 2017 -4.800828428786787 2018 -0.6024648423117469 2019 0.3612724057636001 2020 -9.077876893484373 2021 -1.0374262102246945 2022 1.4822348404474468 2023 2.103245449813244