condition	mean	min	max
4 h after light	6.352705	5.59592	7.10949
8 h after light	5.5198599999999995	4.99962	6.0401
12 h after light	5.999945	5.21935	6.78054
4 h after dark	7.638676666666666	7.21561	8.28408
8 h after dark	8.204603333333333	7.39466	8.68262
12 h after dark	6.22542	5.73557	6.93992