condition	mean	min	max
3 h after light	17.4095	15.2321	21.7502
6 h after light	17.3233	12.4119	22.7207
9 h after light	17.223866666666666	15.6608	20.1382
12 h after light	20.100749999999998	17.5646	22.2946
3 h after dark	15.936533333333333	13.5432	20.1421
6 h after dark	16.7169	15.4553	17.8007
9 h after dark	11.814300000000001	10.6475	13.9464
12 h after dark	16.0141	14.4441	17.5841