condition	mean	min	max
4 h after light	14.3799335	13.282559	15.477308
8 h after light	17.197578999999998	16.764509	17.630649
12 h after light	18.503449	16.812794	20.194104
4 h after dark	19.644491000000002	15.975316	23.313666
8 h after dark	20.576004	18.323574	22.828434
12 h after dark	12.685265	12.685265	12.685265