Year	annual %
1977	1.6890357572366383
1978	-1.06775276073202
1979	-3.2899487715766185
1980	-5.330886012477308
1981	-2.2152112426382757
1982	-6.968762157258681
1983	-5.555021452372273
1984	-2.2124767909163126
1985	-4.306395366221167
1986	-5.408358320626419
1987	1.769725354579748
1988	1.5271923657481636
1989	1.9493937797219587
1990	2.922096069523434
1991	3.7806935168524802
1992	0.7650967214469802
1993	2.1700483228481033
1994	3.1802328325769054
1995	2.656629825526636
1996	2.6658068774568306
1997	3.3679481290481874
1998	3.717811974968015
1999	-1.822928480377712
2000	0.3809233111246897
2001	-0.012215109087350129
2002	0.681043672764801
2003	-0.2934927153609834
2004	1.5802956589126893
2005	3.0965153591953936
2006	3.348611819840258
2007	2.503481351731594
2008	4.844238059350829
2009	1.0242450493237953
2010	1.4540655422431001
2011	3.815503647215124
2012	1.0540600722604125
2013	4.917115027443359
2014	5.364130563842124
2015	5.471230320636948
2016	4.312480841680767
2017	1.3933067537289787
2018	3.227783310206604
2019	1.1377245048708886
2020	-9.112455500768164
2021	3.335097154271054
2022	2.0265145911564417