Year	annual %
1961	5.681292817390073
1962	4.259047214522596
1963	5.32793379542349
1964	6.821164537053988
1965	3.8215075891588697
1966	2.0908442903986924
1967	3.3653885361197666
1968	3.6385056648576892
1969	5.009075194236274
1970	6.473673925717733
1971	0.9446462457158589
1972	2.2887387937982737
1973	3.967981154174538
1974	3.1981956458423895
1975	2.5528626427053496
1976	1.0581048766160137
1977	-1.5962585663413336
1978	1.7515480497740867
1979	3.840003476600316
1980	1.6999714393924705
1981	0.4548304166356303
1982	1.2486646792272467
1983	1.9006387302032692
1984	4.229535244917031
1985	2.1603737456558463
1986	2.6913231733863654
1987	3.3538429842478195
1988	2.5590386654457404
1989	2.6548069272007524
1990	0.7546747686668454
1991	-1.1459748685806517
1992	-1.1585927600785908
1993	-2.0656163696098275
1994	3.9299728368169724
1995	3.9351929260644596
1996	1.579456406499233
1997	3.070526592963745
1998	4.3118363532626915
1999	4.247184143675483
2000	4.766348871487196
2001	1.4494986179698088
2002	2.196921062174596
2003	2.3098105903281123
2004	4.336856153844735
2005	2.8588032399026133
2006	4.662773551751258
2007	3.4392217760006503
2008	-0.45055925674336095
2009	-4.339790574529346
2010	5.95210700755608
2011	3.1953332348894037
2012	-0.5883045689907362
2013	1.1877757159059996
2014	2.6577982753164235
2015	4.489281587904912
2016	2.0705931505209634
2017	2.5679245252647576
2018	1.9500228456998343
2019	1.9861958738039078
2020	-2.1702131788587167
2021	6.147024647080187
2022	2.663199539691334
2023	-0.19617099460454313