Year	annual %
1981	35.06082369324042
1982	0.13029030298584132
1983	-7.158640710066209
1984	0.7683264363222975
1985	-16.344469522526424
1986	4.5834252635504384
1987	14.77981956084031
1988	-9.64136689368867
1989	-3.4484428251281116
1990	-22.24315899908362
1991	10.780663342548209
1992	-6.460938853835856
1993	-3.3900046957328556
1994	-2.518028110015308
1995	0.03703987294608169
1996	7.6777068580762915
1997	4.72540076106354
1998	1.1111463025666097
1999	-1.0639214745818606
2000	3.424435659153886
2001	6.813484957680174
2002	-3.1398616705665745
2003	6.785147788458261
2004	0.6415717417116014
2005	-0.41580328615772544
2006	7.400812907424736
2007	4.796796182238694
2008	11.28985952438562
2009	12.288912590375077
2010	-6.939109253196278
2011	7.186826273828146
2012	7.820051646731855
2013	7.615678926093423
2014	2.5668277244818682
2015	11.75799881676349
2016	13.786698204424113
2017	-8.380831707930426
2018	-1.897651251032059
2019	-1.7738271353044581
2020	-11.38355954109366
2021	12.727233207926545
2022	7.91581933645233
2023	6.08178872946614