condition	mean	min	max
4 h after light	5.8	5.8	5.8
8 h after light	14.3	7.1	21.5
12 h after light	13.7	10.0	17.4
4 h after dark	10.3	5.0	15.6
8 h after dark	11.3	6.7	15.9
12 h after dark	14.55	10.5	18.6