Year annual % 1961 4.960717183491653 1962 2.021469666776426 1963 3.471466159324052 1964 5.419336014151725 1965 2.8100127856154558 1966 4.90447900377788 1967 2.241009758484182 1968 3.9312418288779867 1969 5.909495926434644 1970 6.749434567853058 1971 4.646942731341895 1972 5.592381530811139 1973 4.310905781167278 1974 3.7653730317990295 1975 -0.09903008196823748 1976 4.763369869233671 1977 5.0396476132279275 1978 -0.12983048767274852 1979 5.536447933341776 1980 1.7313777924516103 1981 -0.39862051772210805 1982 1.9381215052179641 1983 3.139628079930617 1984 0.05757309299090707 1985 2.45056567143844 1986 2.2364023548953753 1987 1.2930452791779885 1988 3.1497465084623855 1989 3.420101784771461 1990 3.553547646971225 1991 2.4139864538772287 1992 0.9760922400466399 1993 -0.29875436100003583 1994 2.0087619437807973 1995 2.5109126936983444 1996 2.2114349326934075 1997 1.9779759080570187 1998 3.46782994124915 1999 3.3550446614236193 2000 3.1274366501477147 2001 0.8802590978861105 2002 1.152676331357739 2003 0.4509465272345352 2004 2.099711168897116 2005 1.549877316935877 2006 2.943417858704464 2007 3.3917308268146087 2008 1.1433071188860424 2009 -4.016340042117719 2010 1.5925771284998689 2011 2.5764483181144584 2012 0.2224505769430749 2013 -0.5622989425274483 2014 -0.12237066733756308 2015 -0.1115401895044954 2016 0.892469139632297 2017 1.5507240862715292 2018 1.927713059872957 2019 1.0004069531778441 2020 -7.019825952029763 2021 3.7847196965403924 2022 3.8089560624093366 2023 -1.8119282273813155