Year	annual %
1961	7.393584453296128
1962	7.427610828210897
1963	7.425140987150751
1964	7.505603333372974
1965	7.518894530537562
1966	7.347817083661601
1967	7.273156835335665
1968	7.272399490087361
1969	7.224156129974116
1970	7.216027209982847
1971	7.298380713868526
1972	7.375517281820181
1973	6.689948304939174
1974	4.838860165341778
1975	5.189866540580229
1976	5.175594606554842
1977	5.229909963647101
1978	5.305673661578697
1979	5.310269090715878
1980	5.334917086001587
1981	5.3211324123833625
1982	5.113301408331313
1983	5.828642797817229
1984	6.9616201452394915
1985	6.429427653596916
1986	6.430395767332202
1987	6.198855230683256
1988	5.526725132183209
1989	5.633803813676595
1990	6.065223608291956
1991	5.915012533785131
1992	5.655178462519938
1993	4.9833263554616805
1994	2.5706471794322328
1995	2.717082511206621
1996	2.5860049429637284
1997	2.615131406008809
1998	2.486960624945508
1999	2.548914340804266
2000	2.722866757871709
2001	2.598881422084195
2002	2.448538453562367
2003	2.3815742942150875
2004	2.4160966074506947
2005	2.591367641550485
2006	2.80869071358679
2007	2.9513568948663083
2008	2.9249094879787396
2009	2.9408066425858377
2010	2.6652250139242635
2011	2.35046503532033
2012	2.5453357614055685
2013	2.8174077793086623
2014	3.316192997154302
2015	3.71417608815008
2016	3.7780493905987895
2017	3.981721805744245
2018	3.979758849134961
2019	3.7386897721387444
2020	3.660063440291444
2021	3.6608792333427376
2022	3.6453128784346402
2023	3.6680010027783245