condition	mean	min	max
4 h after light	13.41065	11.7558	15.0655
8 h after light	16.81785	16.8141	16.8216
12 h after light	17.364449999999998	16.3709	18.358
4 h after dark	17.155	17.075	17.3065
8 h after dark	18.910266666666665	18.5065	19.4568
12 h after dark	13.6193	11.9206	14.7673