condition	mean	min	max
4 h after light	18.4428	14.1673	21.5643
8 h after light	11.40384	4.83192	16.3768
12 h after light	12.500273333333332	7.73919	20.3948
4 h after dark	13.053733333333334	11.0146	16.962
8 h after dark	11.399946666666667	9.77344	12.6263
12 h after dark	12.9599	11.2072	14.5777