condition	mean	min	max
4 h after light	16.972873	16.964747	16.980999
8 h after light	17.9534215	15.925235	19.981608
12 h after light	13.618029	11.647729	15.588329
4 h after dark	16.574866999999998	14.923973	18.225761
8 h after dark	16.171574	15.925235	16.417913
12 h after dark	17.420386	17.420386	17.420386