Year	annual %
1981	11.33651544151045
1982	12.31245087077355
1983	11.126644122142999
1984	11.3733220902937
1985	10.4238402303886
1986	6.80905593895127
1987	7.02827195245954
1988	6.93068617206518
1989	8.046158634873201
1990	6.801197607625699
1991	8.819640997338844
1992	9.523477191089896
1993	8.52787695688003
1994	32.2936668569551
1995	14.37880865164195
1996	7.41137173526642
1997	5.57225711125331
1998	5.75331458417063
1999	3.5988981635323753
2000	4.16540442290284
2001	4.60374621964682
2002	3.8957052575849
2003	5.30238773219936
2004	4.47499289078105
2005	8.169546048812624
2006	6.739930603875055
2007	7.25410841304887
2008	10.6597978997424
2009	4.36234829325718
2010	4.69889064976226
2011	6.4293968107234
2012	6.31474450315196
2013	5.16189898581494
2014	3.969860451663085
2015	3.77406982025571
2016	4.6646623581020545
2017	4.97595150553892
2018	3.06735996058356
2019	2.744038315974465
2020	3.46841177951184
2021	4.25936417542868
2022	9.62147608489072
2023	7.38281384280984