Year	%
1981	1.7991046125696757
1982	8.05806949586038
1983	6.386380333829415
1984	3.3057349020988256
1985	8.669877930838847
1986	4.837239395335752
1987	2.378376781621746
1988	-6.744743310586344
1989	0.40038850536930304
1990	9.34306139953667
1991	8.408610758224759
1992	7.701139078793739
1993	1.0340108458317079
1994	3.8266201923954903
1995	-16.86397599494067
1996	-4.602860421274419
1997	6.136599129391124
1998	15.155514173334284
1999	9.945226613371915
2000	17.306643740110506
2001	24.314278090374675
2002	-29.221362602601438
2003	34.95417704612602
2004	19.14440847052624
2005	20.175046947815677
2006	10.238410464253848
2007	22.6855094382416
2008	11.890456645647074
2009	16.079893900405015
2010	11.146069356683158
2011	8.561928153150019
2012	12.487356382068254
2013	14.9275379057295
2014	19.27787102145112
2015	20.50879646070915
2016	19.801204715593546
2017	25.336202899203233
2018	24.6500794575411
2019	16.111593585355536
2020	14.57369406648604
2021	13.307697718592399
2022	2.940055447591898
2023	3.323446894153965