Year annual % 1971 7.076136513759764 1972 14.014460794239469 1973 3.5808320782301877 1974 14.782679128145418 1975 -0.02218561236841765 1976 1.1444146920571683 1977 -1.3418871265075296 1978 7.370161853278788 1979 9.995330081087175 1980 14.755392236389312 1981 8.582600960129298 1982 7.503304020555831 1983 3.075429745269332 1984 4.815475836119717 1985 3.2843592120142375 1986 1.9484364161762642 1987 2.768451079875149 1988 4.199246127861073 1989 4.727504581626846 1990 4.949650002229291 1991 5.1013712207022905 1992 3.030566511086505 1993 3.012221306565621 1994 2.6150313118472184 1995 2.2477675261390004 1996 1.8696044083083052 1997 0.6512031930927265 1998 2.991246825114402 1999 -0.7845975822837232 2000 1.078906210482458 2001 1.1088468390226751 2002 0.09418288931325947 2003 -0.3641253564449016 2004 0.9933061134020704 2005 2.0969946720524035 2006 1.3847089390547325 2007 3.1744599354754257 2008 5.004978286053046 2009 5.3616196135863845 2010 3.6029845733359167 2011 1.5956324343621162 2012 7.122501015737967 2013 0.6369446489835013 2014 3.0238942373196522 2015 -5.250358783260083 2016 2.1941771194573363 2017 9.559811616954477 2018 9.192200557103064 2019 -3.431372549019599 2020 -3.695431472081225 2021 1.9831806200577375 2022 11.121166415284065 2023 6.1442403402406995