Year	annual %
2003	5.6931561620748
2004	5.41763863637384
2005	3.52192512209177
2006	4.79406553371213
2007	10.0905878680469
2008	7.70122134333464
2009	7.74748710689563
2010	6.20079052327074
2011	4.97041834472812
2012	0.991385116043261
2013	4.47308203513886
2014	5.9928872461944
2015	2.66544345930852
2016	4.55576988089952
2017	4.43562156258442