Table 1. Results of general spatial autocorrelation of from 2005 to 2011.

Year	Moran's Index	Z-value	P-value
2005	0.123	9.497	<0.01
2006	0.134	10.458	<0.01
2007	0.155	11.983	<0.01
2008	0.163	12.528	<0.01
2009	0.180	13.771	<0.01
2010	0.180	13.789	<0.01
2011	0.203	15.460	<0.01
Total(2005–2011)	0.178	13.655	<0.01