Year	annual %
1971	8.866401565428461
1972	11.700161216064032
1973	8.816382172901768
1974	35.776386090847666
1975	22.00281758309393
1976	37.65736132067161
1977	-12.168581148703566
1978	-27.60167839853517
1979	-3.747472891461257
1980	2.412190659511765
1981	6.904230606428257
1982	-2.756172669252905
1983	5.742025312224115
1984	12.013369007358719
1985	-2.603868415846705
1986	1.0598307286228135
1987	-17.095784042683945
1988	12.832593009425452
1989	10.365926605502622
1990	0.0866473578331437
1991	6.402305764461175
1992	-5.269030200950553
1993	2.844825200036368
1994	6.033301813717912
1995	3.6468982840223845
1996	3.3448663472766214
1997	4.967696012144131
1998	7.467042442881123
1999	-10.824247885493861
2000	-9.063475919374142
2001	8.121668632499109
2002	3.4338420541984362
2003	0.5260929047408638
2004	-5.4501811765200046
2005	7.889680577056765
2006	-7.915457623546402
2007	3.5928388956583177
2008	-5.085736829111269
2009	8.327943118754149
2010	1.7691423895195726
2011	2.6381607622807195
2012	12.813894108279825
2013	7.4143159697992616
2014	12.932481236835173
2015	-0.09363478172633677
2016	3.1102263506636234
2017	2.020640720414619
2018	-2.4604054242351623
2019	0.22833302091417806
2020	5.209689596592
2021	-23.574697939175323
2022	17.101528236135437