condition	mean	min	max
4 h after light	11.6	11.6	11.6
8 h after light	14.2	4.6	23.8
12 h after light	11.1	9.5	12.7
4 h after dark	37.8	36.0	39.6
8 h after dark	37.8	27.8	47.8
12 h after dark	9.45	8.5	10.4