condition	mean	min	max
4 h after light	8.947115	7.91636	9.97787
8 h after light	14.755700000000001	14.2383	15.2731
12 h after light	14.8039	13.5077	16.1001
4 h after dark	18.054299999999998	17.048	18.9669
8 h after dark	14.239233333333333	11.8263	15.9882
12 h after dark	9.9202	8.6703	10.9509