condition	mean	min	max
4 h after light	18.9971215	18.138416	19.855827
8 h after light	18.3796835	17.053419	19.705948
12 h after light	18.019846	15.489247	20.550445
4 h after dark	23.59406	17.682582	29.505538
8 h after dark	22.513231	18.073312	26.95315
12 h after dark	15.467348	15.467348	15.467348