Fig. 6: Time distribution of the regression coefficients for variables in the GTWR model.

This figure illustrates the time distribution of regression coefficients for key variables in the GTWR model from 2005 to 2022. The boxes indicate the 25–75% interquartile range (IQR), the whiskers represent 1.5 times the IQR range, the solid horizontal lines inside the boxes indicate the median values, and the black triangles represent the mean values.