Year	annual %
1991	-4.56894466700443
1992	-10.7118504344217
1993	-5.24522105390751
1994	-10.3668978616002
1995	-1.48216533807074
1996	-0.589095015885917
1997	2.19814137978626
1998	-2.65232541659792
1999	1.86876130638687
2000	8.42097049535025
2001	3.14578307156283
2002	5.49040922953867
2003	5.96205169047973
2004	8.81963971306021
2005	6.88515120849561
2006	7.55429335581567
2007	7.85767494514545
2008	4.00065364970853
2009	-5.85244590493429
2010	4.99894859206395
2011	5.68389244786908
2012	3.77336563394141
2013	3.90717888214091
2014	2.38889297481062
2015	1.23295043838982
2016	1.58362620140421
2017	3.87204904643778
2018	2.63806501698947