Year	annual %
1987	5.295645669005353
1988	7.6723513114180975
1989	5.012936152493765
1990	4.890232129834587
1991	2.618554079664051
1992	4.764241606220949
1993	3.2603059887456993
1994	5.251211407356891
1995	5.824752820101267
1996	7.179346884352938
1997	3.984586500196997
1998	5.156023957726916
1999	6.283961212754548
2000	4.350491702395587
2001	4.452745528352622
2002	3.3439229900937164
2003	6.070333499382315
2004	7.250634046789088
2005	6.962079517031611
2006	7.157259005113261
2007	7.145825960099515
2008	4.018812485840286
2009	5.558960760639778
2010	6.259397893679264
2011	4.570561154603865
2012	4.906554761679132
2013	5.567320204879692
2014	6.370078892421532
2015	6.425337886572223
2016	6.6094602717925
2017	5.890168525145057
2018	5.7771958508424035
2019	3.8570567654697925
2020	-4.484944525439431
2021	6.926863391674459
2022	6.200397399650726
2023	6.009707171442386