condition	mean	min	max
0 h after light	18.3887	18.3089	18.4685
4 h after light	12.3339	10.9791	13.6887
8 h after light	14.14315	14.1362	14.1501
4 h after dark	18.4493	17.0725	19.8261
8 h after dark	19.038849999999996	17.362	20.7157
12 h after dark	16.7738	13.5251	20.0225