Year	annual %
1981	-0.0333333333334091
1982	13.2960986995663
1983	14.6126112868811
1984	2.54220966810047
1985	10.4238402303886
1986	2.24515251162269
1987	-6.98680270599974
1988	-3.96446882079366
1989	0.689055807312738
1990	-0.0123304562272102
1991	-2.76236280675762
1992	-1.03360811667777
1993	-2.91535849298335
1994	24.5710137275605
1995	19.1894039735098
1996	3.72494110325802
1997	1.61131347760911
1998	-1.8852009615791
1999	-1.41420220082551
2000	3.20340091563112
2001	3.83486060237362
2002	2.33181703516235
2003	4.13470905150996
2004	-2.06640601136303
2005	2.88352073359022
2006	6.69526465773354
2007	0.95991761945711
2008	9.25895099417076
2009	3.52126227238643
2010	1.49102370047802
2011	1.1944757244985
2012	5.47829594346117
2013	6.98879341970198
2014	14.898684179755
2015	1.40297017136816
2016	4.94543276106518
2017	4.18072331871267
2018	1.61215686991555
2019	2.68537355266787
2020	1.71015659523153
2021	4.25936417542868
2022	5.58316735183247
2023	2.97913852618937