Table 2 Hot and cold topics

	Group	Topic	Linear inclination
Hot topic	H3	8, 27	Over 2%
	H2	25, 24, 13, 11	≤ x < 2%
	H1	10, 20, 7, 9	0.5 ≤ x < 1%
-	N	15, 14, 5, 6, 2, 3, 1	Under 0.5%
Cold topic	C1	26, 17, 4	0.5 ≤ x < 1%
	C2	16, 22, 19, 12, 23	1 ≤ x < 2%
	C3	21, 18	Over 2%