condition	mean	min	max
0 h after light	9.793765	9.77624	9.81129
4 h after light	15.155249999999999	12.9812	17.3293
8 h after light	14.15645	11.91	16.4029
4 h after dark	16.6733	16.2832	17.0634
8 h after dark	12.5564	11.5645	13.5483
12 h after dark	9.218545	7.10969	11.3274