Year annual % 1961 3.3447934067540124 1962 2.769104695440546 1963 2.5274954820648436 1964 2.5629737045238907 1965 2.430051182605019 1966 2.486193006685981 1967 2.2086787402843506 1968 1.7245263956258274 1969 1.504529551452808 1970 1.5548987340133598 1971 1.8337876345182742 1972 1.8522087195790304 1973 1.8686970802623688 1974 1.6641425915583021 1975 1.4602699158895298 1976 1.3477233777559803 1977 1.3857234685649122 1978 1.2097007891597604 1979 1.2623924797707362 1980 1.269234299165079 1981 4.807689009341269 1982 4.388593632895116 1983 1.2987446622440508 1984 1.8902219856268028 1985 0.13664517070652615 1986 -0.09449055706127042 1987 1.5038330579556984 1988 2.537773867336667 1989 2.935743734549831 1990 3.889093607452959 1991 2.845482864865634 1992 3.0042563946204712 1993 2.529806747326801 1994 3.1365869318362494 1995 3.0378134848112404 1996 4.064318468390292 1997 3.3574421951606572 1998 3.397212276772866 1999 0.799148451003949 2000 1.7320422325425724 2001 2.6973558432635993 2002 0.9126398057767959 2003 -1.474532841919399 2004 1.2519166730553046 2005 2.350511288571745 2006 3.1293891560754004 2007 4.16600286360931 2008 5.321517083026247 2009 3.015949914757881 2010 1.77183287926401 2011 2.084902456060072 2012 2.453390330310204 2013 1.6193080985887283 2014 1.298440177992262 2015 1.1863769374982205 2016 1.2974360993860168 2017 0.08859546999244845 2018 0.4697042987141205 2019 1.1442833068892873 2020 -0.31190496125082146 2021 -4.170336300175264 2022 3.3086205243952267 2023 4.858316077814419