Year annual % 1961 3.1579919227428377 1962 1.3172316318495092 1963 -0.9063536067312441 1964 4.3314365777597885 1965 2.7178884091331383 1966 2.0830937834683994 1967 1.5547617875293724 1968 4.415817653498081 1969 4.070974995321237 1970 3.892134211349841 1971 4.265508451048007 1972 4.655354228859181 1973 5.523283194611466 1974 3.9682648613377296 1975 1.1863297987020758 1976 2.948597360196999 1977 2.3008606168739334 1978 1.9465370981284025 1979 4.9566605138743824 1980 4.4897674738624715 1981 -1.2734002308191776 1982 -2.468167579966675 1983 -4.5396351908459565 1984 1.5466041760464435 1985 1.060797085917315 1986 1.4646331738876484 1987 1.3486248629221507 1988 -1.551172206886207 1989 -0.288249940484846 1990 -2.129656412091009 1991 1.3656330279208362 1992 0.9401475510211128 1993 2.8567832424379844 1994 3.479038794744028 1995 -1.0318033819299046 1996 2.240740473926067 1997 3.745049452713616 1998 1.3142539832187765 1999 -1.0922410671437177 2000 2.043610880943646 2001 -1.2126487154604888 2002 -0.9611295509039905 2003 1.1728820615359439 2004 3.98825288089391 2005 2.717002124501832 2006 3.9561791551725207 2007 4.1052945893911215 2008 2.6213113769250924 2009 -3.4247118465982 2010 5.536377410973941 2011 3.3671964637212284 2012 1.475839088583399 2013 1.721563882452699 2014 0.30815445882983283 2015 -0.6922084936178123 2016 -1.3676890917454756 2017 0.9669162361717127 2018 0.7025713150052582 2019 -0.18994930545834166 2020 -7.327051877522521 2021 6.444973349023925 2022 3.294507673123263 2023 1.4118955931360517