Year annual % 1961 7.59799400028281 1962 6.421029609043117 1963 7.338803526823341 1964 5.358962909710556 1965 7.684863474673193 1966 7.816711026188187 1967 3.8571464916198295 1968 7.977994642011737 1969 4.888533652561236 1970 5.986538630319856 1971 10.034660580343797 1972 9.388444990989612 1973 11.701081611994539 1974 8.318661973619783 1975 0.8010680921923381 1976 11.563489777254603 1977 7.753058380339979 1978 6.653892215004632 1979 9.34909993075928 1980 7.441826779344069 1981 6.942104201181735 1982 5.943152458010175 1983 6.252230810926733 1984 7.7617901221888275 1985 -1.0252502534207082 1986 1.2405949275068764 1987 5.191932112727017 1988 9.93771967651989 1989 9.059600866504297 1990 9.008527137746285 1991 9.545467414430519 1992 8.88511797832156 1993 9.894943333770641 1994 9.212041793348675 1995 9.829085197308117 1996 10.002700686184411 1997 7.322741850359236 1998 -7.359415188175561 1999 6.137612010576916 2000 8.858868169693864 2001 0.5176753191928611 2002 5.390988306927966 2003 5.788499285887497 2004 6.783437723703045 2005 5.332139161414858 2006 5.5848470671515 2007 6.298785927409469 2008 4.8317698891309675 2009 -1.5135287159871353 2010 7.424847383260968 2011 5.2939128341400306 2012 5.473454192538526 2013 4.693722525578934 2014 6.006721945582029 2015 5.091532421550113 2016 4.449781397615411 2017 5.812722409833285 2018 4.843086976348815 2019 4.413187421295859 2020 -5.456846584267012 2021 3.2976410083183794 2022 8.650344223722882 2023 3.680282185633473