condition	mean	min	max
0 h after light	15.43385	15.3218	15.5459
4 h after light	14.723299999999998	12.4338	17.0128
8 h after light	8.004795	7.85135	8.15824
4 h after dark	11.198094999999999	8.21849	14.1777
8 h after dark	15.25625	13.8906	16.6219
12 h after dark	16.57765	15.7355	17.4198