Year	annual %
1961	14.766843186833214
1962	7.4492115968867125
1963	6.092435284035986
1964	4.554453634403856
1965	8.333335660411706
1966	4.508004566700038
1967	4.115152854262931
1968	2.5088008805875575
1969	8.082910433817148
1970	8.679342175560706
1971	10.258730911689852
1972	11.336970683066184
1973	10.1824336186273
1974	39.48709517884484
1975	19.190114910001682
1976	35.62533796977746
1977	-12.582091168196015
1978	-24.049206070007315
1979	0.47440527972284485
1980	2.552937157652167
1981	5.095329278957863
1982	-3.09752039780534
1983	5.608240679253029
1984	7.5089023083957755
1985	-2.332949332694156
1986	-0.803597733902933
1987	-17.146042214897562
1988	12.845353248086738
1989	8.545309989825455
1990	5.192237276523983
1991	6.112503483011778
1992	-3.090145651543935
1993	3.9465550079024183
1994	3.7127548410896622
1995	4.973847763351031
1996	3.6250490202798744
1997	5.738367394838434
1998	3.4778335871890107
1999	-8.932622802301054
2000	-1.8829663976089677
2001	2.1352334219742346
2002	-0.24903316854343416
2003	2.247330011504502
2004	0.6895430584648494
2005	2.6762033331092567
2006	-2.806578355690519
2007	6.008108024876677
2008	-3.308430648787507
2009	0.13033111981661705
2010	7.089887314551262
2011	7.091753342586543
2012	5.251076917504065
2013	5.638699003386961
2014	4.314964441074693
2015	3.8788993950789035
2016	2.091442208295618
2017	0.4726420309111461
2018	0.8379165808215703
2019	3.9208087945283125
2020	-1.8377610635094044
2021	1.467957315080909
2022	2.967741643773735
2023	2.263232087686376