Year annual % 1961 -1.2894103319760433 1962 3.324429671667801 1963 2.2620515069645535 1964 2.24458857265671 1965 1.7960638768580282 1966 -0.9074420667966052 1967 -4.8070214420721555 1968 1.311828290524744 1969 6.125615426697294 1970 5.485654157250622 1971 3.8678849079848874 1972 -0.5683674863802111 1973 1.5309781979153883 1974 4.574451921892702 1975 -2.997171036980518 1976 2.821569893489624 1977 1.3974562355956834 1978 -1.4795007628890602 1979 0.7054123237403758 1980 0.7822724356771431 1981 -3.1592266187895035 1982 -2.8554257347677208 1983 -3.5958197207012432 1984 -1.0803976630733843 1985 1.339716318268941 1986 0.2612803442183491 1987 0.9328327111443713 1988 1.9615307832717974 1989 -0.41491077530021414 1990 1.1969278896460196 1991 -0.6761057355753053 1992 -0.472723599099524 1993 -1.6711451477163592 1994 -1.582248113141631 1995 0.990242960673811 1996 2.2349038425902847 1997 1.2365402067621574 1998 0.9627567612043464 1999 0.45406025689393914 2000 1.4229067689472998 2001 1.5059852423944022 2002 2.8712636064596637 2003 2.3756222217090652 2004 4.177356190092695 2005 3.717899396728839 2006 3.602226291507307 2007 3.462398410761722 2008 2.641678262312567 2009 2.684340603054423 2010 3.713967975434599 2011 1.7568634414714381 2012 1.0966027949986596 2013 3.009376533089437 2014 3.2846603739650817 2015 1.2542231569609754 2016 1.0518545903139653 2017 1.699133679352201 2018 2.05636898557853 2019 1.6314502836136455 2020 -2.9999664981939986 2021 2.1201236496605844 2022 2.042089839800454 2023 1.0497413703188556