condition	mean	min	max
4 h after light	15.7899905	15.479005	16.100976
8 h after light	14.944937	14.119095	15.770779
12 h after light	13.458234000000001	12.854375	14.062093
4 h after dark	10.404938	8.694916	12.11496
8 h after dark	9.838588000000001	9.356189	10.320987
12 h after dark	24.135344	24.135344	24.135344