Year	annual %
1961	9.895803921568643
1962	32.524640987916115
1963	35.02037673054076
1964	45.07169380860668
1965	28.1488789661785
1966	18.59216373612817
1967	11.110086967297605
1968	33.86391517311904
1969	13.087890820630136
1970	4.950748919298363
1971	-5.277525024967602
1972	9.125840541152456
1973	1.9366197135159098
1974	22.19343696513951
1975	4.02826854947746
1976	22.88095238076228
1977	8.85272018755039
1978	3.3049188118018407
1979	8.958109971084511
1980	0.685280526048146
1981	-19.190180801247976
1982	2.8060567776860665
1983	-2.4722272802964937
1984	-5.0417814289051535
1985	8.326778426420532
1986	-11.352506316407897
1987	-14.702053168416768
1988	7.579023359837336
1989	7.199417145210177
1990	3.720131634608734
1991	15.655131685384305
1992	-2.712274116581071
1993	-3.7631926175772747
1994	1.934786723718787
1995	-2.2204069505000206
1996	2.134123186980119
1997	5.2126710270106145
1998	-3.55224471249835
1999	0.749659246044331
2000	3.679270408199997
2001	-1.7628388706260267
2002	-0.9588973328496309
2003	13.016037247801336
2004	4.461638996486371
2005	11.870756522615096
2006	6.50052541959279
2007	6.229982785618375
2008	-0.1620482387998834
2009	-4.400181763102097
2010	5.027247672377499
2011	-50.33851513849862
2012	86.82674843957844
2013	-17.997961574568123
2014	-23.042805828221503
2015	-0.842656252118843
2016	-1.4909411172621958
2017	32.49180218626876
2018	7.941367852910403
2019	-5.994783943246887
2020	-58.31823041993598
2021	153.49264069307827
2022	1.3361480968462587
2023	-1.6725899458918434