only marginally significantp = 0.06
A hypothesis of exponential growth was also supported by Fu's F s in both the north (F s = −5.5, p = 0.03) and the south (F s = −11.8, p = 0); however, Ramos-Onsins' R 2 was only marginally significant in the south (R 2 = 0.038, p = 0.06).