condition	mean	min	max
4 h after light	18.7146855	15.743581	21.68579
8 h after light	24.4532185	20.569109	28.337328
12 h after light	15.484384	15.043533	15.925235
4 h after dark	25.1232455	19.937132	30.309359
8 h after dark	16.6825745	15.425814	17.939335
12 h after dark	17.289444	17.289444	17.289444