Table A1. Network statistics.

School	Net statistics	Strategy 1	Strategy 2	Strategy 3	Strategy 4
077	# of nodes	851	1,674	2,104	2,104
	# of edges at t1	1,765	3,706	4,585	5,685
	# of edges at t2	1,237	2,514	4,201	4,201
	# of edges at t3	1,074	1,469	2,296	2,296
058	# of nodes	479	757	1,024	1,024
	# of edges at t1	1,854	3,331	4,037	6,063
	# of edges at t2	1,476	2,437	3,713	3,713
	# of edges at t3	1,308	1,673	2,484	2,484
007	# of nodes	121	160	181	181
	# of edges at t1	456	812	853	1,193
	# of edges at t2	211	338	416	416
	# of edges at t3	280	375	421	421
008	# of nodes	70	111	133	133
	# of edges at t1	183	372	413	706
	# of edges at t2	116	239	320	320
	# of edges at t3	191	281	359	359
002	# of nodes	48	54	78	78
	# of edges at t1	129	192	255	367
	# of edges at t2	62	90	155	155
	# of edges at t3	87	110	183	183
126	# of nodes	42	46	62	62
	# of edges at t1	168	209	229	285
	# of edges at t2	89	105	144	144
	# of edges at t3	66	74	110	110