最小值

下四分位数

中位数

上四分位数

最大值

平均值

lnpgdp

−0.5932

−0.5215

−0.3268

0.2027

0.2555

−0.2038

global

−0.4881

−0.4467

0.0739

0.0911

0.1601

−0.0929

upgrade

−0.0286

0.1120

0.2390

0.2272

0.3205

0.4675

education

−1.0498

−0.8844

−0.8350

−0.7488

−0.4831

−0.8168

highway

−0.5867

−0.1462

−0.1146

−0.0851

−0.0218

−0.1263

Adjust-R²

0.4128

0.5265

0.6383

0.7387

0.7696

0.6279