Year	annual %
1961	1.368143319458677
1962	1.5298967946513338
1963	1.6627546481926234
1964	1.7821177905139638
1965	1.8935794946970366
1966	1.985558893744686
1967	2.09902040066617
1968	2.174673632847087
1969	2.237397266849194
1970	2.3381303311847392
1971	2.5981390616842126
1972	2.6447318273548093
1973	2.639186369165707
1974	2.6490306941891606
1975	2.7053582871116837
1976	2.477081819951741
1977	2.2853616901704465
1978	1.3296346231528466
1979	1.23417561442904
1980	1.5467311967156978
1981	0.7748656134132504
1982	1.4755465565919268
1983	2.3678789657364767
1984	2.419447370481943
1985	2.5632251402523702
1986	2.7756081894756797
1987	2.915849373315551
1988	3.2285988367931546
1989	6.065990889553978
1990	5.734225482389635
1991	2.9835293311614643
1992	2.6223349595806744
1993	2.559044306607154
1994	2.4740386282429596
1995	2.2607079012121427
1996	2.026869961440696
1997	1.85274255016992
1998	1.7482586962643143
1999	1.6545365303311248
2000	1.5029921258892613
2001	1.2482830097852762
2002	0.4136148517078138
2003	-0.019668623731474152
2004	-0.23239841432528707
2005	-0.31057309157165186
2006	-0.35550338217333566
2007	-0.3489987417932026
2008	-0.3040007725493054
2009	-0.24588676721670022
2010	-0.2188299709295767
2011	-0.2012405061355159
2012	-0.22401283547684525
2013	-0.21137711767754513
2014	-0.22499139160309808
2015	-0.24777135983288745
2016	-0.2533492463737872
2017	-0.26958290632621335
2018	-0.30932004209825015
2019	-0.35351539255412767
2020	-0.32461289476624333
2021	-0.41141649057806795
2022	-0.597977571804895
2023	-0.6032772016474351