Year annual % 1961 1.2805927592967095 1962 0.540717685595709 1963 6.386339304309104 1964 1.6489603465930145 1965 1.4289424270346416 1966 2.594207522518886 1967 1.293633478792259 1968 5.8988101383316405 1969 2.0593760163287556 1970 3.090046341196654 1971 3.0456550996093483 1972 4.816581902849919 1973 4.327516637414092 1974 3.9645156123224723 1975 -0.3255946588466543 1976 5.0094619112255145 1977 5.410429222700316 1978 2.6085216710291235 1979 2.241326284526508 1980 1.2035450098899787 1981 -1.9271053485289116 1982 -6.073412238752468 1983 -5.18224187797675 1984 -2.219224880755931 1985 -3.309301597366826 1986 -2.5861932676695716 1987 0.7166208727493739 1988 1.0558318395718231 1989 1.1136875303630234 1990 0.32144959608856993 1991 0.9075874688600436 1992 2.12247690614538 1993 1.3098623565803962 1994 1.4747191723101452 1995 2.4054893744666543 1996 0.5134742828480654 1997 1.931911688914397 1998 2.542652446694163 1999 1.415353696351147 2000 1.117529132418042 2001 -0.09656812622657185 2002 1.4803885196943156 2003 0.3480078593985638 2004 0.9683631131594694 2005 1.1529340923907654 2006 3.238219370569226 2007 4.257148929935937 2008 1.3216597834974522 2009 -1.3954706558224217 2010 1.0118948603418971 2011 2.285795169978954 2012 1.16050888968185 2013 1.8886425805381606 2014 2.653911909362236 2015 2.346295146223383 2016 0.989365749396498 2017 1.4156488412032218 2018 1.7651363990561748 2019 2.407414722095666 2020 -3.2733219677880356 2021 6.415405551862619 2022 2.629583197085907 2023 2.0468075498837095