Year annual % 1960 4.14177915090215 1961 2.15797310981964 1962 4.76619721905823 1963 2.8717403448577 1964 3.38766231088349 1965 5.01277129643838 1966 6.40480825348414 1967 4.28931922993319 1968 1.94312582473244 1969 2.691994585557 1970 7.01635885100763 1971 7.39554113837636 1972 6.00738969862495 1973 6.71799739819354 1974 9.91172530113238 1975 9.77987398822576 1976 10.2492246529784 1977 11.4418051091077 1978 9.99526541717732 1979 7.20978617047808 1980 13.7063223649005 1981 12.1039385302598 1982 8.58918509047123 1983 8.87302152363213 1984 8.04424238994422 1985 7.37257458126246 1986 4.23591011089793 1987 4.18857151771368 1988 5.82489868439437 1989 6.4432758742661 1990 10.3665533879493 1991 9.4446273294419 1992 2.3743672511188 1993 4.72817304626053 1994 2.15813800724632 1995 2.45514857818395 1996 0.533131978766297 1997 0.658410256243514 1998 -0.267132668355006 1999 0.462175756339173 2000 0.899143734041633 2001 2.40595834145438 2002 2.15848213589264 2003 1.92565534892391 2004 0.373659828721813 2005 0.453170852576182 2006 1.3602146862768 2007 2.21216883436735 2008 3.43704910602874 2009 -0.494460544377991 2010 1.15798802715628 2011 2.9611507382214 2012 0.888377506923638 2013 -0.0442929701485858 2014 -0.179638494114635 2015 -0.0467847449832812 2016 0.984269244577992 2017 1.79449904665589 2018 1.95353530127028 2019 1.78415097403835 2020 0.497367318853572 2021 2.16319736447153 2022 8.36929098869189 2023 8.54862489748902