condition	mean	min	max
0 h after light	13.83465	11.4071	16.2622
4 h after light	6.820585	6.48854	7.15263
8 h after light	11.67825	10.8515	12.505
4 h after dark	12.73865	11.6342	13.8431
8 h after dark	12.5764	10.8935	14.2593
12 h after dark	8.234115	8.14345	8.32478