condition	mean	min	max
4 h after light	15.515150000000002	13.9074	17.1229
8 h after light	12.8359	12.787	12.8848
12 h after light	13.520150000000001	12.5721	14.4682
4 h after dark	15.9694	15.8306	16.1328
8 h after dark	17.002166666666668	16.2895	17.3982
12 h after dark	15.265633333333334	14.6867	15.5554