condition	mean	min	max
4 h after light	8.37153	7.68076	9.0623
8 h after light	8.81405	8.31621	9.31189
12 h after light	8.683440000000001	7.9436	9.42328
4 h after dark	8.47347	8.00914	8.75112
8 h after dark	8.814983333333334	8.20953	9.91779
12 h after dark	6.436276666666667	4.62814	7.96041