condition	mean	min	max
4 h after light	18.22365	15.806	20.6413
8 h after light	13.5637	12.3006	14.8268
12 h after light	11.0651	10.6581	11.4721
4 h after dark	13.237366666666667	11.7219	14.3119
8 h after dark	17.04573333333333	15.1367	18.9343
12 h after dark	18.4731	17.6375	19.1429