condition	mean	min	max
0 h after light	16.492649999999998	16.4131	16.5722
4 h after light	12.65135	12.2545	13.0482
8 h after light	7.450950000000001	6.51776	8.38414
4 h after dark	18.4421	17.0158	19.8684
8 h after dark	20.681199999999997	18.9182	22.4442
12 h after dark	15.7973	14.6693	16.9253