Year	annual %
1974	63.58566755264772
1975	-23.3024725111627
1976	13.181266346725767
1977	54.2227437485827
1978	4.802115498171345
1979	27.320547310659375
1980	-3.247100802854594
1981	0.28726592979068816
1982	2.3647327102129845
1983	14.47399238887529
1984	15.072210496520237
1985	9.638913398037484
1986	13.271090485428369
1987	1.5429081984154323
1988	4.405524052441819
1989	5.346093313702594
1990	4.25108023992266
1991	17.645427262792552
1992	12.514656649324928
1993	17.794111073238604
1994	-1.2825066426005196
1995	13.746355492499552
1996	30.73954104371998
1997	7.693960616350519
1998	2.461213838275414
1999	9.16809454487686
2000	5.0089643381294024
2001	6.249487142529165
2002	7.26424057784162
2003	-4.446232610681102
2004	14.78683654674134
2005	29.490031160972823
2006	38.8795916406242
2007	27.76492276263066
2008	7.843163111741873
2009	21.87725601838808
2010	10.246084808704731
2011	17.335326694017457
2012	10.942251821579559
2013	6.701510071643299
2014	3.382786512304366
2015	8.026843978547623
2016	10.873621181191654
2017	-0.9346435890933105
2018	-3.7802555353892076
2019	4.417418484321629