Year	annual %
1961	3.31691055632131
1962	3.47954291207939
1963	3.59368908173282
1964	3.68479534878687
1965	3.76125821985448
1966	3.82852030385758
1967	3.938045753169
1968	4.07054151607313
1969	4.19752565267068
1970	4.37434405322606
1971	4.64724919472958
1972	4.99462157803959
1973	5.27882666355733
1974	5.4191249856403
1975	5.38504263113084
1976	5.20570629625869
1977	5.1041091678
1978	5.07011064747562
1979	4.99176119090969
1980	4.93416394328036
1981	4.85949726183168
1982	4.78114985700275
1983	4.74976510986628
1984	4.69268057116096
1985	4.60295582348301
1986	4.49846930114002
1987	4.39954726349984
1988	4.33290626153224
1989	4.254562793708
1990	4.15606854882255
1991	3.97806348318271
1992	3.69608850528346
1993	3.21773399392479
1994	2.87790976793156
1995	2.79878485344488
1996	2.72306511533867
1997	2.68435444077485
1998	2.64400627971485
1999	2.58959021202502
2000	2.52723635699494
2001	2.46860133878166
2002	2.40447229697642
2003	2.30459354525526
2004	2.18309041865558
2005	3.06242987376478
2006	3.95879667991777
2007	3.92920488472079
2008	3.85387472835296
2009	3.74300660963915
2010	3.20649410639241
2011	2.4815925615212
2012	2.19976275661053
2013	2.12178788388145
2014	2.02203271109992
2015	1.92462213676111
2016	2.014458627481
2017	2.29816056079707
2018	2.38415003117342
2019	2.28458901092139
2020	0.472667096302666
2021	-0.129847471045763
2022	1.2670953577821
2023	1.46740769611431