Year	annual %
1971	3.055090775139419
1972	4.784177652971408
1973	4.340123207560453
1974	-0.3808557525308913
1975	1.3367076084530396
1976	3.4179452267437256
1977	2.499718704134281
1978	3.008156191555571
1979	2.581028149709354
1980	0.17165858572228387
1981	0.5360653398447397
1982	0.5427453235289192
1983	2.3043557329483377
1984	2.523512803184744
1985	3.039068966793053
1986	3.146635003689653
1987	2.8224455642368724
1988	3.3434439900436104
1989	2.6997336683302677
1990	2.0350997226682637
1991	0.2528602621830913
1992	1.8282969393850408
1993	0.9981856292681499
1994	2.134905846223333
1995	1.6140700416110434
1996	2.2863465478230864
1997	2.3925939645635736
1998	2.6610764670689235
1999	3.3377054391284986
2000	3.3764226717598405
2001	1.5087660474345483
2002	1.3762640934516668
2003	1.5775797636366349
2004	2.17913334443179
2005	2.209908382715355
2006	1.8049290890630658
2007	1.7276702081893518
2008	-0.38172020846222665
2009	-1.9743180280673585
2010	1.4890525413825202
2011	0.8991198921607548
2012	0.453849870821756
2013	0.8828531203894983
2014	1.3095357029081072
2015	1.9703025585536835
2016	1.5799351861340227
2017	1.7562023153504356
2018	1.5451998840935346
2019	1.0083435827149998
2020	-5.478053342282394
2021	6.33929372345392
2022	3.314194237218885