condition	mean	min	max
0 h after light	8.185905	8.13675	8.23506
4 h after light	3.3767050000000003	2.4713	4.28211
8 h after light	5.93599	5.45456	6.41742
4 h after dark	6.40923	5.56153	7.25693
8 h after dark	6.13524	5.88206	6.38842
12 h after dark	7.643425000000001	6.61222	8.67463