Year	annual %
1961	2.7853060150966327
1962	2.615334325645233
1963	2.5898374055433537
1964	2.5674618453737965
1965	2.488597329855743
1966	2.6658761468050667
1967	2.9152100093768842
1968	2.611935212075509
1969	2.299853101543655
1970	2.43885469313997
1971	2.267418332243818
1972	2.175152845514106
1973	2.0642553066567335
1974	2.123524730909846
1975	2.436716478700512
1976	2.3836646080885933
1977	2.32600112990174
1978	2.4901120937782193
1979	2.2067992047805745
1980	2.084852933057975
1981	2.1858590401038698
1982	2.062013420929364
1983	1.8705067446108683
1984	1.8285322102855333
1985	1.8583307464436882
1986	1.887802807837893
1987	1.9036349071742817
1988	1.864614122822617
1989	1.8183778893745193
1990	1.523033365228456
1991	0.4622047701607435
1992	-0.3542639112653154
1993	-0.41865230656002156
1994	-0.42687399956512184
1995	-0.4864633495241421
1996	-0.5730860828162745
1997	-0.5736690834411892
1998	-0.4916931326124793
1999	-0.444385278166408
2000	-0.41956562434238454
2001	-1.682607995726438
2002	-1.9669773431301476
2003	-0.4714848909694836
2004	-0.32250538151804503
2005	-0.37087135810302896
2006	-0.3463398110969765
2007	-1.2317733066191694
2008	-1.4215226956509763
2009	-0.5888398316387322
2010	-0.35029953220580096
2011	-0.24879787080397064
2012	-0.41923340934448566
2013	-0.4399044193684949
2014	-0.44319003710138083
2015	-0.49417679107789675
2016	-0.5495384356330469
2017	-0.511242828196256
2018	-0.47260826977732284
2019	-0.36767430331163153
2020	-0.3475741505438486
2021	-0.49724931740316214
2022	-0.09917492444451127
2023	0.383086685498027