Research Article
Eco-Efficiency Measurement of Green Buildings and Its Spatial and Temporal Differences Based on a Three-Stage Superefficient SBM-DEA Model
Table 3
Results of descriptive statistics of input-output variables of the sample (2013–2020).
| | Variable | Sample | Max. | Min. | Average | Standard deviation |
| | Fixed asset investment in construction industry (billion) | 240 | 1136.86 | 0.09 | 131.45 | 201.44 | | Number of employees in construction industry enterprises (person) | 240 | 8110275 | 54847 | 1604115.18 | 1785021 | | Total energy consumption (million/t standard coal) | 240 | 354.33 | 14.91 | 126.23 | 75.88 | | Building area of houses (million m2) | 240 | 249176.80 | 738.96 | 39362.64 | 47499.82 | | Technical equipment rate (yuan/person) | 240 | 91231.43 | 728 | 14354.99 | 9978.62 | | Total construction industry output value (billion yuan) | 240 | 6717.06 | 52.22 | 1211.13 | 1302.94 | | Total profit of construction industry enterprises (million yuan) | 240 | 11617738 | 64449 | 2093927.95 | 2070219 | | Carbon emissions (million tons) | 240 | 52901.55 | 562 | 13178.71 | 11055.73 |
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