Fig. 7
Impact of socioeconomic factors on correlations between DAPC1 and DAi. In the x axis, the states with lower ranks have more population (a), higher percentage of the residents with bachelor’s degree or higher (education) (b), and more GDP per capita (c) (e.g., 1 is the state with the most population). Dotted line depict the regression lines between the ranks and the temporal correlation coefficients between DAPC1 and DAi. The equation of the regression line and R2 are shown in the top-right corner of the sub-figures
