condition	mean	min	max
4 h after light	15.708713499999998	15.14767	16.269757
8 h after light	14.530655	12.791553	16.269757
12 h after light	14.974724	14.577886	15.371562
4 h after dark	14.173036	12.913501	15.432571
8 h after dark	15.595282000000001	14.984206	16.206358
12 h after dark	12.621015	12.621015	12.621015