Year annual % 1961 3.6177960338061155 1962 2.876758745376918 1963 6.0211222020658965 1964 7.353430057595276 1965 -2.6871975459460913 1966 -0.03994762132263929 1967 7.733010191776927 1968 3.4442420169478396 1969 6.535821440371322 1970 5.1683248721488155 1971 1.6651358840378947 1972 -0.506017718821326 1973 3.3648321093446896 1974 1.2995285791932645 1975 9.238215774036405 1976 1.69265209629053 1977 7.320230447866123 1978 5.73479485974768 1979 -5.091188030424206 1980 6.775946601295146 1981 5.880560657301473 1982 3.1883693475957813 1983 7.274500395962264 1984 3.675220168344268 1985 5.2837404530221335 1986 4.741374151359025 1987 4.283963616178397 1988 9.029438805512854 1989 5.742601874289875 1990 5.129597303093675 1991 1.7590947831278356 1992 5.943311438167825 1993 4.215643110658476 1994 6.098448347073344 1995 7.099158781954017 1996 7.101784952623817 1997 3.574671945736995 1998 5.464043125236145 1999 8.13603512349927 2000 3.868384026711439 2001 4.713236269467487 2002 3.625174050948459 2003 7.4812605144392705 2004 7.917092625848412 2005 7.758135179239716 2006 7.640010394774933 2007 7.3908580683256275 2008 2.8353186189781496 2009 7.0991351648739425 2010 7.090394567060642 2011 5.097441215344546 2012 4.855203930211971 2013 6.00019558047164 2014 7.026526921720304 2015 7.458893648262446 2016 7.850347653753545 2017 6.610085354249804 2018 6.299500861913529 2019 3.684210795352328 2020 -5.603934318856005 2021 9.340016618507079 2022 6.089598074915315 2023 6.371026594113289