condition	mean	min	max
4 h after light	13.6	13.6	13.6
8 h after light	7.199999999999999	4.7	9.7
12 h after light	15.35	10.7	20.0
4 h after dark	12.149999999999999	4.6	19.7
8 h after dark	16.85	13.0	20.7
12 h after dark	11.35	11.0	11.7