Year	annual %
1961	-0.3873161155894967
1962	-1.4621430922906076
1963	-1.718277741049493
1964	-1.7589197716216076
1965	-1.6822549105810665
1966	-1.4441522388264982
1967	-1.4005759281355212
1968	-1.5985942203687356
1969	-1.9081158908607514
1970	-2.078708879644549
1971	-1.6303489847056003
1972	-0.79551430700703
1973	-0.9979070969124648
1974	-1.099279431363192
1975	-0.5386056126258443
1976	0.06304047132810918
1977	-0.19288995820553717
1978	-0.21376037225423972
1979	-0.2739506828462505
1980	-0.5488776827880958
1981	-0.426638222670907
1982	-0.026842235433014547
1983	-0.06574293661715651
1984	-0.15017421905458248
1985	-0.25748448510437827
1986	-0.31920272315092785
1987	-0.31984690547662276
1988	-0.2918514459610623
1989	-0.13404612786334436
1990	0.40108497412022104
1991	0.6097987302405091
1992	0.33286447045543244
1993	0.15891312369986896
1994	0.07306084117957204
1995	0.03416735447836842
1996	0.009337951155036654
1997	0.0636785517472176
1998	0.11913558429955688
1999	-0.04983451315996155
2000	-0.026147625708874293
2001	-0.20477105552775174
2002	-1.0837083413504036
2003	-1.217790232684631
2004	-1.2228040732608676
2005	-1.17932201266567
2006	-1.1783634327020327
2007	-1.2340462370969423
2008	-1.23357669923261
2009	-1.2380229781425516
2010	-1.3781684207947889
2011	-1.6652414066977916
2012	-2.0726958326923013
2013	-2.2632537760024296
2014	-2.210331233530332
2015	-2.213599773029908
2016	-1.981347927269032
2017	-1.7693090614853988
2018	-1.7852050188851694
2019	-1.6936827318941023
2020	-1.813734797711855
2021	-2.821939218862007
2022	-2.966317653410868
2023	-2.2531946110114602