condition	mean	min	max
4 h after light	15.6	15.6	15.6
8 h after light	11.1	2.5	19.7
12 h after light	13.55	2.5	24.6
4 h after dark	2.75	2.7	2.8
8 h after dark	16.85	13.2	20.5
12 h after dark	37.75	29.5	46.0