Year	annual %
1961	1.7786777232479216
1962	1.818407887766912
1963	1.842250273437006
1964	1.862967562272174
1965	1.8865651573417426
1966	1.8841539616435588
1967	1.81933290881399
1968	1.8034557378269755
1969	1.8440118658417124
1970	1.8988956068108311
1971	1.7802367334337794
1972	1.836287039225433
1973	1.9351231745553528
1974	2.0628635985287307
1975	2.2127504533700817
1976	2.3032889004389148
1977	2.401655436038488
1978	2.469507984656021
1979	2.4736992130023614
1980	2.486119539376959
1981	2.1005552219480643
1982	1.9680341427650307
1983	1.5441949428500075
1984	1.4785930486764858
1985	1.7051338725499736
1986	1.5670094887764976
1987	1.4908553635252781
1988	1.4678309814241115
1989	1.4637013265728323
1990	1.4439494259477552
1991	1.854354548916684
1992	1.8036226657327377
1993	1.8246281220385339
1994	1.8324482583608557
1995	1.8018807434907684
1996	1.756877784347524
1997	1.744019174979332
1998	1.724933025552023
1999	1.7376004158047698
2000	1.7836438274653004
2001	1.3708495040025848
2002	1.370118822865923
2003	1.348166869033446
2004	1.3196297691954473
2005	1.2887775852034895
2006	1.2593355609701837
2007	1.240271005828209
2008	1.2164103836124787
2009	1.1959410242908717
2010	1.1785006315676048
2011	1.1840586954873373
2012	1.1548789924003324
2013	1.0920787657207658
2014	1.01162455057474
2015	0.9134649534107248
2016	0.8738165777737561
2017	0.8848117487197332
2018	0.8488647591580516
2019	0.7973850792466091
2020	0.7870645924579036
2021	0.7525309344639898
2022	0.7263365213769698
2023	0.7268508049420683