Year	annual %
1981	12.413261372398
1982	12.1399176954734
1983	11.5675243834069
1984	11.2499999999997
1985	10.3054406698295
1986	7.4333333333332
1987	8.15234253800871
1988	8.755496850861395
1989	8.27501608751592
1990	7.72532188841208
1991	8.965622652143095
1992	9.523477191089896
1993	9.67934658067928
1994	28.8143894306731
1995	12.2885912601426
1996	7.27287999570148
1997	8.16902144106963
1998	6.66139865665752
1999	4.249552558972505
2000	4.1992882562281
2001	5.077450455224955
2002	5.03282275711195
2003	6.084424898862251
2004	4.178160001197909
2005	6.60524085549201
2006	6.61655430536479
2007	7.02551436974771
2008	10.2969758221254
2009	4.848669646407091
2010	4.08972989470464
2011	5.68631959575954
2012	6.57589970757698
2013	4.90520875694557
2014	4.4038027171436
2015	3.472387528836525
2016	5.494104637600605
2017	5.20971705914209
2018	4.27462198610545
2019	2.8351455568750303
2020	3.48393567493209
2021	4.25936417542868
2022	9.52526628622843
2023	7.089978602932935