showed a trendp = 0.340
In contrast, the North region (R 2 : 39.0%; p = 0.030) showed a trend of significant and not constant increase (second order model), while the South region (R 2 : 22.0%, p = 0.340) showed a stable trend ( Table 2 ).
In contrast, the North region (R 2 : 39.0%; p = 0.030) showed a trend of significant and not constant increase (second order model), while the South region (R 2 : 22.0%, p = 0.340) showed a stable trend ( Table 2 ).