Year annual % 1961 0.46010603984289844 1962 7.868012510064901 1963 5.616400059368559 1964 4.668135293502715 1965 5.138989514804209 1966 4.829845595268978 1967 5.374480942936515 1968 4.15002447776169 1969 5.079187699664004 1970 1.1372755436629234 1971 5.47391081946769 1972 2.7895499134298944 1973 4.5775274296454285 1974 5.468562310474127 1975 1.4251729064112055 1976 2.375269090620577 1977 1.14153173539448 1978 1.5167908136774173 1979 2.9161572004987306 1980 5.457356294137924 1981 4.016984361482116 1982 0.31958558125400316 1983 0.022638507736076008 1984 3.3665954156061133 1985 -0.11553988913665592 1986 2.260733113083475 1987 3.9645163518673456 1988 4.272253773899948 1989 2.6978406941343707 1990 0.18203089876509182 1991 -0.09270888272092748 1992 -2.3551086444995946 1993 -0.5915811076385893 1994 1.899017288737653 1995 4.283193111188339 1996 5.454771733908245 1997 3.838777545166323 1998 1.7583745644808175 1999 2.655959056319716 2000 3.2198029944500632 2001 3.5101467387661245 2002 3.8416463619832513 2003 2.9634051560719428 2004 5.557363527976534 2005 6.16483585935859 2006 6.577594199700343 2007 6.646593490920267 2008 4.371097572326704 2009 0.8803313579206531 2010 5.233777971922322 2011 4.06901977125888 2012 1.7562102035288945 2013 4.250345099058109 2014 3.983181784166632 2015 3.0115719817801647 2016 2.1835807809677448 2017 2.6513997420266833 2018 2.6817181041620017 2019 2.1892592838523797 2020 -2.780378551830367 2021 4.497379982643594 2022 3.554422329389425 2023 2.6223104070060685