Year	annual %
1961	2.439985421013205
1962	1.344606077448546
1963	2.274460637296727
1964	5.151961323738945
1965	4.793786276921864
1966	7.7026559808509205
1967	6.745790858653876
1968	4.7688716893939045
1969	7.288473010316807
1970	6.663192709491199
1971	4.9048302703176745
1972	4.140495641371203
1973	-2.2559751981148253
1974	4.753200335521086
1975	-3.468589488940367
1976	5.310734073990474
1977	1.587984566625039
1978	4.8162206284738005
1979	3.264819689875125
1980	-4.098364069904889
1981	-2.136750114922563
1982	-2.4329372470569695
1983	-1.8968528152652766
1984	-2.1073156999200933
1985	-0.8433181594425605
1986	-1.6785981002684736
1987	-1.0016007531893507
1988	-2.0418981684339883
1989	-26.66844933516279
1990	-51.03086495059173
1991	-14.225211758843841
1992	-35.085681092070985
1993	-32.975391498881436
1994	-21.762349799732903
1995	-4.266211604095531
1996	12.121212121212068
1997	106.27980922098646
1998	30.208131021193964
1999	21.741447884978385
2000	28.615933349588374
2001	2.920274765697812
2002	3.7630176170007132
2003	-30.145132727942027
2004	2.6198468947741276
2005	5.281212453092948
2006	8.04390997190059
2007	9.535275362822816
2008	7.145691128114763
2009	5.300540502915311
2010	6.0998252400414685
2011	8.200768224970645
2012	7.993814445553667
2013	8.687287816396832
2014	0.7013931002875182
2015	-0.018564969559093925
2016	-1.5549586174877987
2017	2.455155920122394
2018	1.1575751220735526
2019	-2.467297635326858
2020	-2.982491276494727
2021	4.986712834816174
2022	4.808105172906551
2023	4.711025383806813