TABLE 1.

Organization of Levels and Distribution by Grade and Age of Cases and Reproductive Number

Level	Grade	Age†	Total Students	Index Cases	Total Cases	R*	Population in Each Age Range
Preschool	P3	3	63,857	658	823	0.19
	P4	4	68,214	698	874	0.20
	P5	5	70,878	857	1160	0.28
		(3–5)	202.949				218.103
Primary school	1	6	72,503	856	1161	0.28
	2	7	72,249	989	1326	0.28
	3	8	76,530	1141	1621	0.35
	4	9	78,577	1228	1756	0.34
	5	10	80,751	1364	1994	0.37
	6	11	81,714	1401	2167	0.44
		(6–11)	462.324				495.828
Middle school	1	12	84,795	1421	2312	0.51
	2	13	84,292	1400	2324	0.53
	3	14	84,323	1425	2377	0.57
	4	15	82,370	1542	2589	0.57
		(12–15)	335.780				323.288
High school	1	16	31,588	914	1536	0.54
	2	17	32,858	787	1334	0.58
		(16–17)	98.263				148.709

^†Corresponds to the age of a student on January 1, 2021 and not considering repeater students.