Year	%
2001	34.94949537641834
2002	34.17370263392346
2003	96.80160605540918
2004	59.06004486226154
2005	53.92317430279423
2006	83.62527287001657
2007	46.25328785906608
2008	52.916204874239824
2009	42.43429263930189
2010	44.856588005143294
2011	43.264130982798086
2012	44.197977149818904
2013	47.29161748944948
2014	48.697839872494356
2015	45.9888338652817