Year	annual %
1971	-4.122904176388516
1972	10.065388444648988
1973	18.930566704258723
1974	44.45648719695345
1975	5.827085705925896
1976	-26.325029150910368
1977	-3.9501066748955083
1978	1.7886703688152465
1979	-12.043524577579433
1980	-17.932838393466866
1981	3.6690410958904067
1982	-2.3878331998756863
1983	-11.413134053234515
1984	11.649045919967563
1985	-15.154820571755053
1986	-4.437787478393346
1987	-0.9342115475117367
1988	18.542741402116405
1989	-9.533305257340373
1990	-8.034961144942116
1991	-7.428002478386233
1992	21.656822738451993
1993	-1.5070865942624465
1994	0.31126325043521774
1995	1.4036473317128468
1996	-1.6310121692099528
1997	-0.6278746636482708
1998	2.1411510859105505
1999	-5.439769790207151
2000	4.931999983208456
2001	-4.998147613384376
2002	-0.41654247391952026
2003	-3.59729653734297
2004	-2.532955889809017
2005	-0.8991008991009153
2006	3.946224633554138
2007	1.14166642784852
2008	-4.821495890878211
2009	-1.4121674644713238
2010	-0.8494913313258081
2011	1.767531969769152
2012	4.196879688519488
2013	5.768988551430596
2014	-0.1870331659233102
2015	9.796382015921964
2016	5.5903607051627375
2017	1.9554250116168248
2018	1.8182300990257545
2019	1.6648107174312088
2020	-2.386798246654479
2021	6.675915510373471
2022	1.9914354680808088
2023	2.502511756303477