Year annual % 1961 -2.313248749952251 1962 17.047240933300074 1963 6.502902633973633 1964 6.7648651164071225 1965 -12.481833916157697 1966 13.463344832587083 1967 3.327542287233058 1968 0.23886048469610444 1969 10.891445830779347 1970 18.226682879650085 1971 10.871466068182528 1972 10.394164076760575 1973 12.895763725101745 1974 6.001902903330063 1975 5.19325335716043 1976 6.728122641971552 1977 4.981783950875297 1978 2.140684676527769 1979 4.531399216791783 1980 7.968738507441998 1981 4.279867479526871 1982 1.698708630978345 1983 4.627946348454273 1984 1.2528959745247192 1985 -2.1225349762371337 1986 3.5219931990150286 1987 10.11736736174771 1988 2.1559633310785102 1989 4.400538814910874 1990 -5.454312395112581 1991 0.9441388890565605 1992 11.220932739600158 1993 7.3645130417130105 1994 2.6003542682773144 1995 5.685430736986419 1996 5.977825114342664 1997 8.885269065903927 1998 6.714477711771764 1999 5.940049136285538 2000 4.6617622800145995 2001 2.4595163677291794 2002 4.495103402920989 2003 -1.3457061850644152 2004 2.5701342793019677 2005 9.428236946796801 2006 9.1743554058408 2007 7.415951714814554 2008 3.209504261579582 2009 0.9461551677906215 2010 8.339651059622184 2011 3.133423003267552 2012 2.7173678967056247 2013 4.875205093322705 2014 7.050463689659111 2015 6.927018771622102 2016 6.659200262695819 2017 4.666704677323665 2018 6.9825275845805805 2019 5.052168020162526 2020 -6.720239372834044 2021 12.271990234789598 2022 4.858324035824509 2023 2.3606156872329365