Year	Type	Above settlements	Below settlements	All sites
2008	With 55	0.108	1.41	0.802
2009	With 55	0.178	1.604	0.939
2010	With 55	0.19	1.348	0.808
2011	With 55	0.166	1.356	0.801
2012	With 55	0.196	1.972	1.143
2013	With 55	0.229	2.633	1.511
2014	With 55	0.308	2.777	1.625
2015	With 55	0.162	1.932	1.106
2016	With 55	0.205	2.467	1.411
2017	With 55	0.144	2.456	1.377
2008	Without 55	0.108	0.888	0.516
2009	Without 55	0.178	1.115	0.668
2010	Without 55	0.19	0.831	0.525
2011	Without 55	0.166	0.951	0.576
2012	Without 55	0.196	1.14	0.69
2013	Without 55	0.229	1.516	0.902
2014	Without 55	0.308	1.703	1.037
2015	Without 55	0.162	0.954	0.576
2016	Without 55	0.205	0.89	0.563
2017	Without 55	0.144	1.246	0.72