Year	annual %
1971	1.574038110972566
1972	4.315685792086583
1973	4.957084811738426
1974	-1.8876633689794033
1975	-1.42599656279981
1976	4.169865241932257
1977	3.231219700058034
1978	3.9923516406798143
1979	1.3681319027079866
1980	-2.026939993254061
1981	1.8236847496187778
1982	-1.7161419833610694
1983	2.621500642373448
1984	6.809113273813551
1985	2.936469057182194
1986	1.5682222374050099
1987	3.0901975457686035
1988	4.116135853202209
1989	1.4426621090125593
1990	0.0914833170625684
1991	-1.377363205856085
1992	1.5416540667701355
1993	1.017687686353156
1994	3.026191546356216
1995	2.2355608209769855
1996	3.060125163121711
1997	3.9028266656881243
1998	4.181271358805176
1999	3.40210671463403
2000	3.5764792097508575
2001	0.5306699108379007
2002	0.5237699103885234
2003	1.4107694874767418
2004	2.918503843690658
2005	2.420845698989126
2006	2.5248003973417923
2007	-0.06082434378818391
2008	-2.3146694160145103
2009	-2.756015771218685
2010	2.8174063883435565
2011	1.4147032236108146
2012	2.186681681647414
2013	0.9321747559606166
2014	2.4414940555795397
2015	2.076063954467429
2016	0.5455260794883827
2017	2.103430288187951
2018	2.3131485169517703
2019	2.0925840684793826
2020	-3.708428497442455
2021	6.217813682594198
2022	1.9752960242001194