Year	annual %
1961	5.04905532265667
1962	4.68389653122148
1963	4.59954521208234
1964	5.0646911935771
1965	6.03380191298317
1966	7.00086880253486
1967	7.62410551445943
1968	7.67485723800887
1969	7.04714122030992
1970	6.01715577887168
1971	4.94487485449896
1972	4.09903581697092
1973	3.60772850653594
1974	3.34774147071149
1975	3.18004729801674
1976	3.0539119018226
1977	3.05180498166969
1978	3.12631454961849
1979	3.27916313024586
1980	3.62038822263842
1981	3.96872462873427
1982	4.23122379195464
1983	4.40766517551833
1984	4.4773339184401
1985	4.5182658004112
1986	4.55771900371839
1987	4.57778324454832
1988	4.61799413984365
1989	4.75580914953832
1990	4.99645923378023
1991	5.20035687843464
1992	5.32452640722867
1993	5.26071964383574
1994	4.84674260687139
1995	4.12195625087521
1996	3.31966384276846
1997	2.67591298839406
1998	2.31242740294799
1999	2.17201120457383
2000	2.10659408273097
2001	2.09677758965608
2002	2.1501680651457
2003	2.26000934810202
2004	2.49462542491271
2005	2.60672257408209
2006	6.75790900912969
2007	6.34380871094335
2008	2.43277656402626
2009	2.20117695037558
2010	2.19915131357546
2011	2.54581045628308
2012	1.42278781713891
2013	6.48192864156847
2014	11.7940156559538
2015	9.21991788769051
2016	4.83585013508326
2017	2.48500934190509
2018	2.36510265786667
2019	2.25750975365016
2020	2.12736281777905
2021	1.98907685592122
2022	1.22663656612596
2023	0.452488759778546