condition	mean	min	max
4 h after light	7.738295	7.18202	8.29457
8 h after light	9.79867	9.63023	9.96711
12 h after light	14.87275	14.3007	15.4448
4 h after dark	12.674533333333333	11.3151	13.9864
8 h after dark	13.341066666666666	10.9839	14.8457
12 h after dark	10.45599	9.10946	12.6469