condition	mean	min	max
4 h after light	6.7	6.7	6.7
8 h after light	11.5	10.5	12.5
12 h after light	17.65	11.4	23.9
4 h after dark	21.15	11.8	30.5
8 h after dark	24.45	7.3	41.6
12 h after dark	14.8	14.3	15.3