Year annual % 1961 3.6490139210334718 1962 3.2938915709058563 1963 0.7193134851039247 1964 3.5278469915460846 1965 9.940457735086113 1966 2.783406693706027 1967 3.7662708715974844 1968 4.545049231194696 1969 0.08231096406188954 1970 7.290932378579555 1971 5.087271779357749 1972 5.451474559136727 1973 4.324704289954553 1974 3.9379629984819076 1975 -1.906394069005728 1976 9.003740527296927 1977 2.256022623957648 1978 1.4462497415660636 1979 5.089438937962427 1980 12.960875947059705 1981 -2.2818176832428207 1982 -2.193469243739571 1983 -4.80635429087836 1984 0.8853733773068058 1985 0.5212445269063579 1986 3.196157244130248 1987 -2.6744771652080743 1988 -3.691316903591911 1989 -0.2978721330610341 1990 2.452487448683115 1991 2.094005161502622 1992 -0.019906178221461346 1993 0.30301209496185777 1994 3.335659779862027 1995 0.9353747171193731 1996 2.3746954260194 1997 3.6657221170814864 1998 1.0380835856679766 1999 -0.6589616299206398 2000 3.0037999705807152 2001 -0.7076770431133923 2002 -1.2135152209949496 2003 0.6979011065047445 2004 2.737186497951157 2005 2.8294518505006323 2006 4.6104011403113105 2007 3.7262605606916708 2008 3.10465365231876 2009 -2.0081827109022043 2010 5.234811718586911 2011 4.274286465290118 2012 2.037981228315914 2013 2.3762995976065895 2014 0.5769082117841577 2015 -0.17128203126016217 2016 -1.3018882721841294 2017 1.5363074450123122 2018 0.9133874137627629 2019 0.3399860605902205 2020 -8.288817343401092 2021 7.1898927254953975 2022 4.649771405733389 2023 1.8472053288256944