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

Table 3

Pure technical efficiency of 12 cities’ urban infrastructure in Heilongjiang province.

Value of pure technical efficiency	2005	2006	2007	2008	2009	2010	2011	2012
≧1	10	11	11	11	12	12	12	9
<1	2	1	1	1	0	0	0	3
Mean	0.997	0.996	0.997	0.999	0.996	1	1	0.997