Year	annual %
1961	1.1538622979331734
1962	3.3014298542010607
1963	4.932761912919645
1964	8.127249120246944
1965	6.152973338820587
1966	4.997037697929699
1967	3.255326510747537
1968	6.203825115941882
1969	8.235838498530754
1970	8.104266356365855
1971	6.2230005346889214
1972	6.293508773249101
1973	7.0310885510539265
1974	6.018915748240275
1975	4.313527636797048
1976	6.331597360276689
1977	4.618714592417092
1978	3.780391575995239
1979	4.6820744057578025
1980	4.7643169086263555
1981	1.884231422645783
1982	2.8706876808566477
1983	1.6187792123514981
1984	4.782795930001967
1985	4.524268153860717
1986	3.7102043240235787
1987	4.64848551205732
1988	4.09877464667332
1989	3.1350502740682913
1990	3.2561260713079605
1991	2.855455794140255
1992	4.336060891486611
1993	5.10405266555702
1994	5.195174561333161
1995	4.565774305493747
1996	6.23018717587054
1997	5.627010382081821
1998	3.2844147140195616
1999	3.6616022628208356
2000	5.578586209274917
2001	3.6170813167984335
2002	4.72859777284998
2003	5.884688773734254
2004	7.690911343452385
2005	7.330509158410365
2006	8.253241320405763
2007	8.881962016807663
2008	5.919643850333415
2009	3.9718549202177655
2010	8.18128187806606
2011	6.4946477858990335
2012	5.640534165882173
2013	5.6432483056369165
2014	5.170964721458887
2015	4.826225857895466
2016	4.805234352132473
2017	5.37582661721801
2018	5.014148382357078
2019	4.083175497705966
2020	-1.2127209617695485
2021	7.506216158426241
2022	3.8505924899173323
2023	4.5395649939698615