condition	mean	min	max
0 h after light	18.698050000000002	18.2208	19.1753
4 h after light	11.8647	11.5889	12.1405
8 h after light	17.0919	16.8402	17.3436
4 h after dark	16.3003	14.9681	17.6325
8 h after dark	16.29305	16.0155	16.5706
12 h after dark	15.01745	12.8097	17.2252