Year annual % 1961 0.22372098355743839 1962 0.6073831751101014 1963 0.4970310696513516 1964 0.38823811122420243 1965 0.2991681075987622 1966 0.19583597754471052 1967 0.1033135514280574 1968 0.004743178716998259 1969 -0.08060219198578567 1970 -0.17995030202016163 1971 -0.256308547432415 1972 -0.02741771565491758 1973 0.0873403448247148 1974 0.028992044002697778 1975 -0.014510642704335691 1976 -0.061168419001208355 1977 -0.0930627823593378 1978 -0.14418920118057893 1979 -0.20048231333167987 1980 -0.27120025025057215 1981 -0.32332141610366794 1982 -0.09184039818934128 1983 -0.024107415145254312 1984 -0.08267546512505235 1985 -0.13045197129197855 1986 -0.16440325604915867 1987 -0.1944060209704335 1988 -0.2558307648356456 1989 -0.3189787192304972 1990 -0.3933938780448213 1991 -0.0679676585203616 1992 0.022338708093594898 1993 -0.04178034624341328 1994 -0.11679383572198937 1995 -0.18560188758467083 1996 -0.24843856333399156 1997 -0.2837446891486723 1998 -0.33810801661043066 1999 -0.399539992145714 2000 -0.45492788939617324 2001 -0.5314760995111358 2002 1.5811445358432115 2003 1.5504737574714722 2004 1.4957579517867432 2005 1.4551014211263043 2006 1.395591746840808 2007 1.3322288870609558 2008 1.265374850045938 2009 1.1833753889748513 2010 1.1394109223019602 2011 1.1085709112354643 2012 1.151885560416103 2013 1.1554037876356111 2014 1.0907910609216924 2015 1.0237903132290216 2016 0.598281379244261 2017 -0.7330031593432924 2018 -2.655330384587388 2019 -3.1767326684071473 2020 -2.0071715791441678 2021 -1.418423286266819 2022 -0.09453690765567345 2023 1.3613495001098441