Year	annual %
1981	5.7456352922812215
1982	2.948596801189481
1983	1.104938261950437
1984	-1.251596644058111
1985	1.7806439592490335
1986	5.637243178521118
1987	-0.7878426549272461
1988	-1.4200396556639134
1989	9.836548971872276
1990	-9.575640169934147
1991	-28.002141655909867
1992	-7.187110915000375
1993	9.559411684931504
1994	8.302866596996708
1995	13.32233332168397
1996	9.099999436463605
1997	-10.919984078139109
1998	8.829423758398065
1999	12.890803640776326
2000	6.946216592442539
2001	8.293312631210227
2002	4.536524160356748
2003	5.528637464917878
2004	5.514667910979142
2005	5.526424246954647
2006	5.902659035919243
2007	5.98325951855567
2008	7.500041430201506
2009	3.3542893498746054
2010	3.7069381525531924
2011	2.545406144501044
2012	1.4172427999077968
2013	1.0020175407110798
2014	1.774448852603939
2015	2.2187263751780364
2016	3.3149806838413696
2017	3.802598720190531
2018	4.019345616955761
2019	2.08771199649604
2020	-3.3020820386254144
2021	8.908527818311825
2022	4.856401652273064
2023	3.4391494991961054