condition	mean	min	max
4 h after light	11.3	11.3	11.3
8 h after light	7.8	7.5	8.1
12 h after light	5.8	5.1	6.5
4 h after dark	23.6	21.2	26.0
8 h after dark	14.3	4.3	24.3
12 h after dark	12.55	7.8	17.3