Year annual % 1961 8.137529508176684 1962 7.553444180522575 1963 10.040173313141509 1964 -3.1031681559707636 1965 7.834260464749292 1966 10.180095306912037 1967 12.50861274603399 1968 13.526994222638706 1969 13.83382511601306 1970 13.942003003191587 1971 12.413437158634238 1972 13.315562608373938 1973 10.60300301717865 1974 6.117404371098829 1975 3.988738625509015 1976 7.437166818149592 1977 6.852442393824944 1978 7.777181954220168 1979 9.554448739723469 1980 10.113372106847507 1981 10.815923298675216 1982 7.1021448489135395 1983 8.554482106144135 1984 8.79228623912256 1985 -0.6227016501131573 1986 1.3428104144543624 1987 10.797932470281935 1988 11.26359213382004 1989 10.158828638788947 1990 9.820899557317773 1991 6.688397539583789 1992 6.6398055694956355 1993 11.459650875246012 1994 11.095689310022692 1995 7.175401120910706 1996 7.471390860020023 1997 8.316209111244973 1998 -2.1910150061127354 1999 5.718371757108372 2000 9.038316325551634 2001 -1.0708627510044835 2002 3.923360767020128 2003 4.548255426432291 2004 9.939982684349573 2005 7.366322392507584 2006 9.006766078717575 2007 9.021519512688926 2008 1.8634834546203507 2009 0.1279533827780881 2010 14.519749710899404 2011 6.214934168589892 2012 4.435497593785371 2013 4.817630991206755 2014 3.9355402770900696 2015 2.976799316348064 2016 3.5886436958266756 2017 4.512926317709272 2018 3.5171141850925522 2019 1.3450587408272838 2020 -3.8697989343004338 2021 9.690766870820639 2022 3.8380767851980693 2023 1.0750317509510126