Year	annual %
1961	5.184618715780957
1962	3.685604999256185
1963	4.73593988216561
1964	6.026059164179969
1965	2.8482597812801203
1966	1.1239895693795177
1967	2.5753747098380018
1968	3.0576942320126363
1969	4.273715199150502
1970	5.484382859235453
1971	0.25243485508129027
1972	1.9869213388985258
1973	3.788932052820982
1974	2.899184813104384
1975	2.1462532193603465
1976	0.6912381229586799
1977	-1.9451271474668346
1978	1.4557337534881754
1979	3.613647519345477
1980	1.4937331594717165
1981	0.33443678551566336
1982	1.1907753796491818
1983	1.854515079593071
1984	4.134865287437378
1985	1.9917741012096144
1986	2.452772613218386
1987	3.0095477664165315
1988	2.088760518840843
1989	1.972191267789782
1990	-0.020759175519131645
1991	-1.8175151730461465
1992	-1.7366303566737855
1993	-2.6328084517702592
1994	3.193955399699206
1995	3.3912691148738787
1996	1.4179242381152193
1997	3.011523033338378
1998	4.2539467085561
1999	4.165978927774745
2000	4.5982547941730445
2001	1.1775018923171388
2002	1.8648739738901696
2003	1.9298303835092412
2004	3.9273062567083343
2005	2.4482484397892392
2006	4.075714897490144
2007	2.6750026708392056
2008	-1.2230695777002722
2009	-5.151262728853155
2010	5.052678572602403
2011	2.41898851140094
2012	-1.3210023244455726
2013	0.33398486328788124
2014	1.6442440059553718
2015	3.3901762960005755
2016	0.79614630049835
2017	1.1951475713216695
2018	0.772577449000039
2019	0.9575616564197844
2020	-2.8746841901851923
2021	5.511425193498141
2022	1.9668636507740587
2023	-0.666848158531991