Table 4. Number of fixed hotspots (diagonal, bold) within a continental region, common hotspots shared between a pair of continental regions (upper, italics) and the proportion of shared hotspots in relation to the fixed hotspots (lower).

	SSAFR	MENA	EUR	CSASIA	EASIA
SSAFR	1870	1212	1146	967	527
MENA	0.29	3473	2241	1597	990
EUR	0.30	0.52	3048	1539	900
CSASIA	0.33	0.41	0.44	1984	806
EASIA	0.18	0.24	0.24	0.29	1575

SSAFR, MENA, EUR, CSASIA and EASIA stand respectively for Sub-Saharan Africa, Middle East and North Africa, Europe, Central South Asia and East Asia.