Year	annual %
1971	7.0436809586495315
1972	3.9007763656341012
1973	-6.57007472270098
1974	-12.99131961079432
1975	-12.27440869911591
1976	6.606184510879558
1977	-3.847536859463645
1978	7.354774372019236
1979	13.899210403531285
1980	-19.410745234230248
1981	-18.924731183572703
1982	-11.749102822535079
1983	7.93847241738375
1984	5.241605243534636
1985	-4.264591436318682
1986	8.567712567736763
1987	8.146151538779506
1988	-10.052617002532244
1989	25.89285714187585
1990	-26.228892521735858
1991	-41.00779066816103
1992	82.80932902625281
1993	33.99046755590078
1994	8.43616564472201
1995	4.8582912520274135
1996	0.605127158807079
1997	2.4733252580408447
1998	3.662054727954427
1999	-1.7890091245007937
2000	4.694581870792106
2001	0.21333257649935433
2002	3.0142831519225126
2003	17.326020417514343
2004	10.240298058635375
2005	10.609044984022844
2006	7.514773000240211
2007	5.991575510593151
2008	2.4797569427854427
2009	-7.076056430734113
2010	-2.3705480470201366
2011	9.628516604154086
2012	6.6262524253136945
2013	1.1492128609052372
2014	0.5009173557350124
2015	0.5927717593997954
2016	2.9260762613677116
2017	-4.7122237649010685
2018	2.4339789391612783
2019	1.3814636798432645
2020	-5.274020604524665
2021	1.6976248297957568
2022	6.138252785480574
2023	-2.2300934628668614