condition	mean	min	max
4 h after light	17.9507	11.7486	23.5987
8 h after light	9.99694	3.22462	15.0161
12 h after light	10.378626666666667	6.28027	14.9863
4 h after dark	14.9831	11.4058	17.8214
8 h after dark	19.3368	12.5677	23.1055
12 h after dark	20.9771	18.881	22.7185