Year	annual %
1961	0.7070745961530207
1962	1.2851794501121674
1963	1.7993751510155818
1964	1.7479193384309326
1965	2.0234659474842545
1966	2.0945841927955513
1967	2.02252807732593
1968	2.0424545871728697
1969	2.082602325332701
1970	2.0720613177928016
1971	2.000730224180728
1972	1.87609683037806
1973	1.816545006924457
1974	1.702418482274453
1975	1.6690884818052751
1976	1.5296407059623078
1977	1.4711149453259509
1978	1.3402915058249363
1979	1.2270762923247958
1980	1.1910298376171369
1981	1.1934557233925176
1982	1.3071050782201326
1983	1.3415636819488412
1984	1.26851961935823
1985	1.2612291207905457
1986	1.2763280446863092
1987	1.2925814638722812
1988	1.2635405754714952
1989	1.2332978098045402
1990	1.2044327186615078
1991	1.1333908001743822
1992	1.0692615626989692
1993	1.029319943301175
1994	0.978622998747241
1995	0.9385946533952989
1996	0.9141980030509274
1997	0.8666778330785405
1998	0.8167419061807664
1999	0.7670956028019873
2000	0.7060983921349759
2001	0.5905699474304953
2002	0.48961127690824924
2003	0.4460856785116931
2004	0.3997636423150226
2005	0.3589681536529099
2006	0.33684256485686603
2007	0.3145721407592248
2008	0.2780032572865281
2009	0.2785749864434166
2010	0.27809738086700975
2011	0.3392732995061607
2012	0.358438707200321
2013	0.3208098212184467
2014	0.2732101332217951
2015	0.22178153166065329
2016	0.20240912923756582
2017	0.18933223420818024
2018	0.14870122636727956
2019	0.11247239298846523
2020	0.06779467753925417
2021	-0.021843405252539583
2022	-0.1555007003649962
2023	-0.0703006911905959