Year annual % 1961 5.2613240418118465 1962 15.52466070837471 1963 6.70487106017192 1964 1.5843179377013965 1965 6.872852233676976 1966 -0.7914914667326243 1967 9.231862378459237 1968 12.707901097621932 1969 10.887879045617105 1970 7.886465864700651 1971 12.896378363280887 1972 18.193963184149723 1973 16.606070908454313 1974 29.307855746436793 1975 20.094633853309112 1976 18.103125774998563 1977 19.711358796557185 1978 17.654710053366234 1979 13.850679638228202 1980 10.829878603883625 1981 16.444814411445954 1982 11.084826700604227 1983 17.683860308508642 1984 10.222157516480596 1985 13.150264410491122 1986 16.90019514424852 1987 9.921195897374199 1988 15.20570248046955 1989 12.230865150525503 1990 21.478455938372978 1991 16.802843156042577 1992 9.258568743847508 1993 7.943647743793812 1994 10.178633532517626 1995 7.0442258468107575 1996 6.575307212249887 1997 16.190763658315728 1998 6.037737482897768 1999 10.23928149067613 2000 8.444172915778001 2001 18.11435780241954 2002 10.315883898873063 2003 7.866024615278398 2004 8.353980580925255 2005 14.058383629931859 2006 18.08860955241922 2007 17.547133144655177 2008 13.311478306537817 2009 7.006974000465648 2010 4.195405743193431 2011 6.438345871503047 2012 4.518011100830776 2013 3.0881629851228167 2014 6.199650310432473 2015 5.690502032144173 2016 4.736322588602823 2017 5.545820788219691 2018 4.06012946102122 2019 3.778060659752922 2020 8.361791418688215 2021 5.0939419274629705 2022 7.963729416226599 2023 3.9003518872240095