Evaluation of Urban Infrastructure Investment Efficiency: Empirical Evidence from Heilongjiang Province, China

Table 2

Comprehensive urban infrastructure efficiency of 12 cities in Heilongjiang province.

Value of overall efficiency	2005	2006	2007	2008	2009	2010	2011	2012
≧1	9	9	10	10	9	10	10	8
<1	3	3	2	2	3	2	2	4
Mean	0.976	0.978	0.995	0.993	0.979	0.987	0.978	0.978