condition	mean	min	max
4 h after light	22055.38278	19818.26667	23592.04667
8 h after light	21308.655	18936.57667	22515.435
12 h after light	27863.552219999998	20467.75	35650.85333
1.5 h after dark	35332.51	31725.79667	38634.40333
5.5 h after dark	38648.60666666667	36026.84333	43455.74667
9.5 h after dark	27387.89111	26148.48	28524.35