Evaluation of the Efficiency of Marine Science and Technology, Green Efficiency of the Marine Economy, and Comprehensive Efficiency in China

Table 3

Descriptive statistics.

Variable	Mean value	Standard deviation	Minimum	Maximum	Observed quantities
	−0.5874	0.3090	−1.7012	0	132
	−1.3433	0.8544	−4.0788	0	132
	−0.2146	0.2852	−1.0722	0	132
	0.1551	0.4072	−0.7829	1.1915	132
	−4.6811	0.7187	−7.5346	−3.5957	132
	−3.8330	0.6644	−5.6931	−2.6308	132
	−1.8413	0.6099	−2.9495	0.5420	132
	−0.7407	0.7278	−2.1246	1.6038	132
	−7.7281	0.7359	−9.7054	−6.4250	132