Year	annual %
1961	2.613696135786995
1962	1.916292193975707
1963	4.059425547018549
1964	0.5744641128178785
1965	2.490603741362648
1966	1.6547666636532767
1967	2.450210147625455
1968	2.2955044412811105
1969	2.0140681649605057
1970	1.0377797684182752
1971	2.6840187850872184
1972	2.78012628876003
1973	6.106613403101363
1974	0.9411895893065747
1975	2.948526560706725
1976	6.0762635972050845
1977	2.791524011195108
1978	2.340336890063611
1979	2.7661481540107786
1980	2.4515747584541856
1981	0.7995959967406634
1982	1.134998322918463
1983	-0.6029982665154137
1984	-9.289393499561186
1985	-9.06352428667519
1986	1.1176672815708173
1987	1.9891384834470784
1988	4.262220020579903
1989	3.7620125965653415
1990	0.6854802449734763
1991	-2.775217060355601
1992	-1.9219614618634893
1993	-0.19903250876781442
1994	1.9560918735338078
1995	2.2076282304776385
1996	3.3319026857806904
1997	2.6205454226054314
1998	-2.882086758879254
1999	0.9648507578826155
2000	2.094018889165227
2001	0.8907428907680668
2002	1.5988352810514215
2003	2.9871896150872175
2004	4.4724645592652195
2005	2.9306102888540693
2006	3.350809007938807
2007	4.545525133692863
2008	2.410934329531983
2009	-0.4013004334484265
2010	5.418030308218107
2011	2.0242199176007176
2012	5.049330146891833
2013	4.9648013387488135
2014	4.642336026753242
2015	4.587218250704936
2016	5.265571276418115
2017	5.0643932525349555
2018	4.548700917826395
2019	4.37652555122709
2020	-10.978194139283147
2021	4.146514169042035
2022	6.018194836564717
2023	3.9462037819709224