condition	mean	min	max
0 h after light	15.891200000000001	15.7995	15.9829
4 h after light	14.239550000000001	12.0649	16.4142
8 h after light	12.835550000000001	11.9533	13.7178
4 h after dark	19.82185	16.7342	22.9095
8 h after dark	20.21885	19.5377	20.9
12 h after dark	19.41975	18.5627	20.2768