Year	annual %
1986	0.5301466105362493
1987	-4.156473830793757
1988	10.46677819165322
1989	-9.418352297046056
1990	-3.416735991560074
1991	-9.414780450082276
1992	-30.25402882361948
1993	-17.300623757193165
1994	-22.46866190901021
1995	-14.077047327670442
1996	-18.348263609780986
1997	0.3264597496809927
1998	4.633178744563281
1999	3.15069190647111
2000	6.883574256085609
2001	7.258658968765815
2002	8.54826756608648
2003	8.825128448093466
2004	8.212584203312929
2005	4.72987023807147
2006	5.055225906320686
2007	5.835861382313226
2008	5.893088682225198
2009	1.897164301109953
2010	4.359555318069511
2011	5.150687404519999
2012	5.181983258373933
2013	5.021062185242428
2014	4.268557189248327
2015	3.560193553335239
2016	4.43428362152531
2017	4.697657723528209
2018	5.211721312606215
2019	4.997436360344864
2020	2.144187338255705
2021	7.078973174856856
2022	5.800206042794059
2023	6.263346475899411