Year	annual %
1961	2.61582673606549
1962	2.63870409873429
1963	2.56210206718498
1964	2.464668154362
1965	2.55538227590365
1966	2.6300703054352
1967	2.66641460367349
1968	2.65976681860942
1969	2.63511159248859
1970	2.63598301769698
1971	2.60387897876537
1972	2.54518813954411
1973	2.50552161442428
1974	2.47337141484608
1975	2.47146860129902
1976	2.45832432299941
1977	2.50245881173244
1978	2.56687493262411
1979	2.57786514580967
1980	2.62992874072176
1981	2.6567608259322
1982	2.62988991910437
1983	2.57241249301082
1984	2.45874480007799
1985	2.34564984631512
1986	2.16737522524319
1987	1.97596762086305
1988	1.87516165815164
1989	1.78624203551582
1990	1.7353448117643
1991	1.68397154027355
1992	1.63767566233961
1993	1.58613440097231
1994	1.51814756348818
1995	1.50568181853375
1996	1.4927847173982
1997	1.46345525327148
1998	1.43040873226662
1999	1.37640231495404
2000	1.33056292746569
2001	1.30709067761953
2002	1.27670558488657
2003	1.21926266518875
2004	1.2458784781145
2005	1.31905268782034
2006	1.30947924386268
2007	1.28772191974814
2008	1.28003720148764
2009	1.28110624620562
2010	1.30835154510463
2011	1.34266554348538
2012	1.35377246657382
2013	1.34423384293623
2014	1.3080629397791
2015	1.25305827289905
2016	1.22317023430594
2017	1.1916294240897
2018	1.1178970270223
2019	1.04358412669917
2020	1.05316017914606
2021	1.05148431222073
2022	1.02339197878946
2023	1.01483758667745