Year	annual %
1961	1.8691308977704633
1962	1.5385252227543869
1963	1.4855562192460223
1964	1.4763364607145038
1965	1.5987749421245046
1966	1.711045124919423
1967	1.7537284823412855
1968	1.8404703705101992
1969	1.8684195338763938
1970	1.9092212183596575
1971	2.7862314780628545
1972	2.6218730305119236
1973	2.6241595578853683
1974	2.6279084037531026
1975	2.5803372563802083
1976	2.515427239377343
1977	2.4005206138360315
1978	2.292266479512856
1979	2.2020126313512596
1980	2.0666908779714857
1981	2.1224339768692717
1982	3.1376562578485347
1983	2.9477548625072716
1984	2.8633445474629187
1985	2.7198302184411824
1986	2.5483099403329317
1987	2.3878281534085053
1988	2.268019568278266
1989	2.1247391395625543
1990	1.907276684958447
1991	1.7079737901395091
1992	0.0941619655261051
1993	0.21713104661509794
1994	0.17872307156656475
1995	0.138291013050519
1996	0.08243748029948801
1997	0.011134989488930195
1998	-0.07351385398852196
1999	-0.21416628375628663
2000	-0.38262356067949166
2001	-0.10317835067375182
2002	0.6286303852758688
2003	0.7265972039346326
2004	0.6531932483686818
2005	0.600865823937137
2006	0.549451931764078
2007	0.4966987404787612
2008	0.4533295044431471
2009	0.4469953502423683
2010	0.3873526859203906
2011	0.4135143907928544
2012	0.6445616412882696
2013	0.33126236919814517
2014	1.2289101932850937
2015	1.3434117510128507
2016	0.5282675730317503
2017	0.8985809308889944
2018	1.0228826298361855
2019	1.2798868968002606
2020	1.2187841299114195
2021	1.0070069544412423
2022	0.8724092654688466
2023	0.8420499417608484