condition	mean	min	max
4 h after light	19.931449999999998	19.8678	19.9951
8 h after light	18.4537	17.9841	18.9233
12 h after light	12.63785	11.2485	14.0272
4 h after dark	12.857333333333333	12.2484	13.3804
8 h after dark	15.8444	14.7297	17.3978
12 h after dark	15.273433333333333	14.7588	16.0729