condition	mean	min	max
0 h after light	6.8894400000000005	6.71796	7.06092
4 h after light	5.5687750000000005	5.27409	5.86346
8 h after light	4.89821	3.9669	5.82952
4 h after dark	7.42556	6.48973	8.36139
8 h after dark	10.2414	9.5449	10.9379
12 h after dark	6.286585	5.64427	6.9289