Year	annual %
1961	10.6382536313846
1962	10.7342671032511
1963	10.60334957452
1964	10.2214504739758
1965	9.82672176262808
1966	9.57329316420296
1967	9.40758354727775
1968	9.20133974955796
1969	8.70211647853252
1970	7.73329154612461
1971	6.73710338243221
1972	6.21361023931735
1973	6.02439089090589
1974	5.9888365017949
1975	6.16930547377786
1976	6.43045175127265
1977	6.49512022417436
1978	6.35613756830007
1979	6.07130474537844
1980	5.61745616011601
1981	5.16310846661037
1982	4.95428729381318
1983	4.90557193370538
1984	4.3926888771991
1985	4.05077200038428
1986	4.10306996949096
1987	4.00315366030632
1988	3.86276578402681
1989	3.72741498108819
1990	-27.7222248198714
1991	-22.3479739664061
1992	19.0520403663224
1993	2.01651287020796
1994	-0.761153758673458
1995	0.856473402491306
1996	2.86429747440301
1997	3.35694387485977
1998	3.24383679467613
1999	3.13163021635058
2000	3.01539399732843
2001	2.89193287688669
2002	2.7577620921541
2003	2.61011184898608
2004	2.44313720641219
2005	3.73359223835884
2006	5.56835432784763
2007	5.88896046397853
2008	5.59158488996994
2009	5.31183453845195
2010	5.15215597247121
2011	6.588978450283
2012	7.67642810205362
2013	7.15682472094729
2014	3.10674056152789
2015	3.83756936489801
2016	3.50280908539676
2017	1.87988170001332
2018	4.55608227002645
2019	2.82985240186539
2020	-1.83282064689651
2021	-2.5628080932518
2022	0.44040518714903
2023	0.96131038288673