Table 2 The statistical description of the dependent and independent variables
Variables | Observed value | Mean | Std.Dev | Min | Max |
|---|---|---|---|---|---|
Ln (the comprehensive index of SECR) | 217 | -1.635 | 0.458 | -2.790 | -0.295 |
Ln (the per capita GDP) | 217 | 1.661 | 0.411 | 0.839 | 2.799 |
Ln (the proportion of social welfare expenditure in GDP) | 217 | -2.301 | 0.498 | -3.342 | -0.540 |
Ln (the proportion of the tertiary industry in GDP) | 217 | -0.744 | 0.174 | -1.139 | -0.180 |
Ln (the proportion of the older adults aged 65 +) | 217 | -2.167 | 0.427 | -2.754 | -0.195 |
Ln (the old age dependency ratio) | 217 | -1.965 | 0.240 | -2.658 | -1.435 |
Ln (the park green space area per capita) | 217 | 2.555 | 0.216 | 1.766 | 3.047 |