condition	mean	min	max
4 h after light	23.3691015	21.049728	25.688475
8 h after light	18.3346095	16.805697	19.863522
12 h after light	19.613678	18.96961	20.257746
4 h after dark	18.6963515	17.744462	19.648241
8 h after dark	18.310145499999997	17.574837	19.045454
12 h after dark	17.320141	17.320141	17.320141