condition	mean	min	max
4 h after light	10.842855	9.20151	12.4842
8 h after light	7.47043	6.83144	8.10942
12 h after light	20.1267	18.9264	21.327
4 h after dark	31.277800000000003	29.3332	33.3877
8 h after dark	25.534766666666666	24.1697	26.5357
12 h after dark	17.798366666666666	17.3843	18.5282