Year	annual %
1961	8.35072672427799
1962	5.202308787974275
1963	-4.029300397988038
1964	3.8167962684232606
1965	3.6764677364912473
1966	1.3589824623200428
1967	2.116272056714081
1968	7.63132623875093
1969	7.5485251946646486
1970	6.358470186966585
1971	7.753035853085237
1972	8.617550844841176
1973	8.231188946412999
1974	7.885520811134938
1975	7.731596833649405
1976	0.9162867511036836
1977	-8.953427980381818
1978	6.359747011211496
1979	9.813224738094021
1980	17.63660548276107
1981	17.619722470156745
1982	23.59769996014917
1983	5.85396283993704
1984	6.9761310544813995
1985	-1.1856608543253344
1986	-6.861526436651928
1987	0.18937664036890567
1988	1.7662634284723424
1989	2.59987651814491
1990	1.00000356627487
1991	2.395367452556158
1992	2.611948055338715
1993	-0.979683208744774
1994	-5.493075745414018
1995	3.985324378110704
1996	4.290481558704016
1997	-0.6248121522607164
1998	3.7375527698088433
1999	-2.58219935813743
2000	7.575980395264196
2001	3.8026018991356096
2002	4.5818700610888925
2003	0.8132640763037813
2004	3.4766316211808856
2005	7.755758978066481
2006	7.986238363342906
2007	-6.613994804410012
2008	6.306375955852587
2009	11.637288861575755
2010	9.931265430955776
2011	2.205919362867178
2012	9.947153142575644
2013	-0.7124344518764474
2014	6.646065409284475
2015	0.4151930612937633
2016	-8.685243439137864
2017	-5.594773719155469
2018	-2.3043178012584207
2019	1.124477073638829
2020	-6.267777995818875
2021	1.0150733797729856
2022	1.4753561324713331
2023	1.90686426346754