condition	mean	min	max
0 h after light	8.875505	8.63092	9.12009
4 h after light	8.690835	7.98505	9.39662
8 h after light	15.97955	14.3876	17.5715
4 h after dark	15.381499999999999	12.5904	18.1726
8 h after dark	12.3911	11.5076	13.2746
12 h after dark	9.452035	8.85547	10.0486