condition	mean	min	max
4 h after light	30.9	30.9	30.9
8 h after light	23.15	20.7	25.6
12 h after light	59.0	19.7	98.3
4 h after dark	27.2	13.0	41.4
8 h after dark	34.1	24.3	43.9
12 h after dark	22.65	19.1	26.2