condition	mean	min	max
0 h after light	18.211599999999997	15.915	20.5082
4 h after light	23.867	15.9481	31.7859
8 h after light	6.247295	5.14386	7.35073
4 h after dark	19.472749999999998	18.4395	20.506
8 h after dark	54.27515	53.6459	54.9044
12 h after dark	23.7565	17.8845	29.6285