Year	annual %
1961	7.167489685815866
1962	8.535492477567459
1963	-5.499355771166606
1964	4.57968478724942
1965	11.031661400397468
1966	3.654504215101653
1967	10.292071716029085
1968	6.624550085913697
1969	7.210499439655365
1970	9.145123195727336
1971	3.504103395494738
1972	0.8128941864025165
1973	0.8498270702143031
1974	-5.119343644818471
1975	-2.3919094267302654
1976	3.8269784350666356
1977	3.100878314331794
1978	4.314551669808878
1979	7.3264644452829515
1980	3.8622614087928184
1981	-2.3269208297468538
1982	-5.2573153676789985
1983	0.1631210049841485
1984	3.2887019519713903
1985	0.8505028456183652
1986	4.9174467978738505
1987	2.4783229591650837
1988	3.4621820368512743
1989	3.6012011176422902
1990	-3.3483070007862636
1991	-4.0977366434849785
1992	-5.986085477373166
1993	0.4906830014268735
1994	1.7313083361625985
1995	1.7841482737550223
1996	3.7826041524209586
1997	4.568602084366205
1998	3.564005147516596
1999	0.1341152537158763
2000	4.2549945127736635
2001	-2.630358564214106
2002	0.3796448470343421
2003	1.7767084301824667
2004	1.0316427008267368
2005	3.58049163318141
2006	5.698705469753577
2007	1.6959789246799915
2008	0.19384599843503736
2009	-5.418311891980963
2010	-2.5451807834260194
2011	-1.05154423827166
2012	-0.5058940592760308
2013	-1.5516470666634632
2014	-0.28446800299660424
2015	2.206615770503987
2016	2.3443699936477174
2017	0.32105880202082915
2018	-0.924143740513955
2019	0.20362523472373084
2020	-12.699510624482315
2021	-1.3613625505985567
2022	13.305584438493895
2023	4.383061987340753