condition	mean	min	max
4 h after light	11.9499	11.5913	12.3085
8 h after light	6.447145	6.40951	6.48478
12 h after light	6.074495	5.71381	6.43518
4 h after dark	7.442876666666667	7.19493	7.93525
8 h after dark	10.22667	9.64491	10.849
12 h after dark	11.416133333333333	10.9746	11.6838