condition	mean	min	max
4 h after light	7.869325	6.66302	9.07563
8 h after light	13.60865	12.919	14.2983
12 h after light	30.85185	28.7911	32.9126
4 h after dark	23.102066666666666	21.1529	24.8828
8 h after dark	9.78982	9.00946	10.352
12 h after dark	7.003046666666667	5.3788	8.36815