condition	mean	min	max
4 h after light	3.8	3.8	3.8
8 h after light	3.7	3.6	3.8
12 h after light	18.45	5.1	31.8
4 h after dark	38.95	5.2	72.7
8 h after dark	7.05	5.5	8.6
12 h after dark	5.95	3.4	8.5