Year annual % 1961 1.1779420273379912 1962 5.9374010732716584 1963 4.877054825413069 1964 4.894604402571389 1965 4.468030105144777 1966 1.7021256029141227 1967 -2.279929955601716 1968 4.030087076346447 1969 8.96658008387108 1970 8.242260750911939 1971 6.3757583745445885 1972 1.8603769733790188 1973 4.208057168349129 1974 7.369029415716739 1975 -0.43472843210098233 1976 5.489296093019021 1977 4.054077065214983 1978 1.2147580782891652 1979 3.5354756447805897 1980 3.5631347547388117 1981 -0.514485005684449 1982 -0.11307602254453286 1983 -0.8716553499873498 1984 1.6569781939412138 1985 4.156759713559353 1986 3.0243714342522736 1987 3.6944699612873535 1988 4.706327665692143 1989 2.2518319785117598 1990 3.8673360309712024 1991 1.89504426498506 1992 2.1438843508638854 1993 0.970945506836955 1994 1.0030344094090822 1995 3.5872243959347543 1996 4.848752210617562 1997 3.762128784327757 1998 3.4436608769819372 1999 2.9179640301389753 2000 3.9352723760015493 2001 4.034189240608683 2002 5.453470309241752 2003 4.906203558167022 2004 6.685731979039971 2005 6.188377681641683 2006 6.0771035903227215 2007 5.921876185818832 2008 5.030060153078992 2009 5.077611646413075 2010 6.190945922872416 2011 4.17427280390676 2012 3.3958672058069794 2013 5.24082859450219 2014 5.482550600264219 2015 3.4093581604758043 2016 3.244363809936445 2017 3.9456818209455946 2018 4.332600772220616 2019 3.9194091066855776 2020 -0.7929945352120171 2021 4.433211437262827 2022 4.310298530890648 2023 3.29631108462722