condition	mean	min	max
4 h after light	8.617883333333333	8.55081	8.74399
8 h after light	8.787460000000001	8.75481	8.81052
12 h after light	8.61834	8.55879	8.69213
4 h after dark	8.253033333333333	8.08911	8.41698
8 h after dark	8.182970000000001	7.92249	8.35486
12 h after dark	8.225383333333333	8.0491	8.35411