Year	annual %
1961	3.278445997779599
1962	1.3809206042225242
1963	-20.34280717491754
1964	33.54059317222894
1965	-3.0591072132046833
1966	4.134426125563522
1967	6.224734602732113
1968	6.460875095196371
1969	4.959124911675161
1970	-0.4201994762195227
1971	6.504165597957922
1972	-7.276968612705986
1973	34.75765400747994
1974	65.41046803463226
1975	4.372245191309204
1976	14.664935188591116
1977	9.795680030645798
1978	2.8590740843683022
1979	18.98301603476473
1980	36.78110196592786
1981	10.442066699850855
1982	16.90362924520865
1983	2.9248421156471665
1984	12.010217108534377
1985	-1.276051769806159
1986	-20.809814065488368
1987	0.9932832332611383
1988	2.615134401570927
1989	7.728024791145245
1990	15.358141390288466
1991	-11.366102531916752
1992	0.2138669588892128
1993	-0.5094807791676743
1994	46.5514429443013
1995	1.3391154879335687
1996	13.562676743395286
1997	0.9465368383561952
1998	-17.786401478440183
1999	19.191335888387
2000	28.089343597003392
2001	-0.16865893243166852
2002	0.8558078142362717
2003	-0.21712039573060338
2004	7.765278534605798
2005	20.09447289466118
2006	9.868137277707774
2007	4.231361642472507
2008	20.478959040974146
2009	-18.074535104597828
2010	16.564320214108875
2011	12.681227773109953
2012	-2.941902703606104
2013	-6.157924934444907
2014	-0.8513903333214614
2015	-8.927172453279553
2016	-4.269753979745715
2017	3.820302144468428
2018	7.176657494399336
2019	1.5474851979842157
2020	-9.17390572382459
2021	25.348307291500547
2022	13.85546499111598
2023	-7.415332219796085