Year annual % 1962 -0.34265569942630236 1963 -0.08067763739816769 1964 5.096510044065482 1965 2.9231537509407843 1966 0.3334602159242195 1967 1.772944486043329 1968 2.1927423748959995 1969 4.241052561520803 1970 6.279377267434839 1971 -0.8696096371571116 1972 -3.3774335619842333 1973 0.3830636702815582 1974 7.392998910051958 1975 -1.2342925259788018 1976 7.852491140570336 1977 11.288283397835187 1978 3.586546764753848 1979 10.71313092890071 1980 0.049055372754310156 1981 2.5658780906371277 1982 4.270531509722957 1983 2.7028783197560813 1984 -2.7339799449032682 1985 31.787763181203047 1986 -5.273155455842584 1987 -6.119491995104127 1988 3.105503713180454 1989 5.584731901425528 1990 3.271374608305848 1991 19.084290230607877 1992 15.532225868371512 1993 13.376864229636638 1994 2.9310817142422536 1995 12.706369018741 1996 0.23913803873189465 1997 0.20665555091621002 1998 -0.15014693764280196 1999 2.222723092619688 2000 6.799999953655814 2001 -5.755335340377101 2002 -3.621434213032984 2003 12.76797832760927 2004 3.9113624562196208 2005 9.87551191119556 2006 11.552349804496771 2007 17.220579480555358 2008 30.311673081421816 2009 24.14641529094648 2010 1.4445723174067382 2011 20.061875081956998 2012 33.54140501799651 2013 4.9019792990784055 2014 10.981788290868579 2015 10.836542778974433 2016 10.397925540646597 2017 6.676855083193416 2018 12.38229481238757 2019 12.860396818593856 2020 18.25459028765708 2021 21.763264067550097 2022 34.66735301692668 2023 33.02069288169454