Year	annual %
1997	4.989979443102982
1998	-3.122725268169063
1999	-2.5526973986963526
2000	7.57098511057923
2001	9.73626807955381
2002	8.783859017959529
2003	7.990947988009125
2004	12.379676648901295
2005	12.039258710502736
2006	12.37158793655955
2007	14.352065721377286
2008	10.514748456505444
2009	-5.157325181981747
2010	5.394789491382056
2011	6.610367341355243
2012	7.344620724275103
2013	4.862232275928861
2014	0.26450903767769773
2015	-9.625458206742024
2016	-2.7158764046431116
2017	3.5839078477186774
2018	4.229085827926966
2019	3.7998748258245314
2020	-5.698105777024509
2021	9.850205985042379
2022	-1.5069806921375886