condition	mean	min	max
0 h after light	24.2485	23.367	25.13
4 h after light	19.2892	19.0408	19.5376
8 h after light	13.39725	12.103	14.6915
4 h after dark	13.73295	11.8122	15.6537
8 h after dark	17.97685	17.6105	18.3432
12 h after dark	20.2214	17.7248	22.718