condition	mean	min	max
4 h after light	78.7	78.7	78.7
8 h after light	84.05	81.8	86.3
12 h after light	110.5	97.6	123.4
4 h after dark	67.25	11.1	123.4
8 h after dark	84.65	84.0	85.3
12 h after dark	45.6	23.5	67.7