condition	mean	min	max
4 h after light	8.47344	8.35576	8.63808
8 h after light	8.71725	8.622580000000001	8.80349
12 h after light	8.778223333333333	8.66526	8.98588
4 h after dark	8.248316666666666	8.02807	8.576419999999999
8 h after dark	7.941513333333334	7.8094600000000005	8.09892
12 h after dark	7.77348	7.6313699999999995	7.88347