condition	mean	min	max
4 h after light	14.499703	14.074375	14.925031
8 h after light	14.7553375	14.082116	15.428559
12 h after light	12.033588	11.82179	12.245386
4 h after dark	15.116750499999998	14.925042	15.308459
8 h after dark	16.2629135	13.866883	18.658944
12 h after dark	15.535948	15.535948	15.535948