Year annual % 1961 1.207169289988542 1962 -2.762439149390886 1963 -0.9941513912577591 1964 1.303484049704437 1965 -0.01185068678930179 1966 2.050018560974152 1967 -4.532047237058919 1968 1.054022641850679 1969 5.1190199777542205 1970 1.735116051705461 1971 -0.7931021992327913 1972 -1.8650415798278175 1973 -0.281137614093268 1974 2.290900417373038 1975 5.4186868770818535 1976 3.2471312810038455 1977 0.8196311656664506 1978 4.779270455527154 1979 5.661427387634731 1980 5.376812014758414 1981 1.1375129450547519 1982 -10.154864104044677 1983 -10.697145491543196 1984 -1.6345621209242296 1985 0.9309561485107309 1986 8.202038606855638 1987 7.372389392870261 1988 0.8553533270563776 1989 0.4469632110956354 1990 -0.3179800810887343 1991 2.932443968173942 1992 7.303314324683868 1993 2.0744681713501762 1994 6.669323981259964 1995 -2.011426952899768 1996 4.978087651675224 1997 7.930998290103048 1998 3.954631868159808 1999 -2.0098928828545866 2000 -2.3249545432953482 2001 -4.097996634129856 2002 -7.885543448558963 2003 0.6907505210110827 2004 4.890119116258134 2005 7.334976048921661 2006 3.9539107874240216 2007 6.337655624848708 2008 6.93600335053371 2009 3.9931843231999693 2010 7.530255670483683 2011 4.881023872351207 2012 3.246526464448735 2013 4.326613641118811 2014 2.9197296574484 2015 0.04167987694611952 2016 1.3636774146064852 2017 1.4896376885397302 2018 0.022997795680240074 2019 0.8883225765889051 2020 -7.39838466784262 2021 5.64896088197078 2022 4.813286594162136 2023 0.3582685168719735