condition	mean	min	max
4 h after light	9.393600000000001	9.3137	9.51164
8 h after light	9.31928	9.1416	9.54037
12 h after light	9.377963333333334	9.183710000000001	9.65956
4 h after dark	9.817343333333334	9.61738	10.19158
8 h after dark	9.647753333333334	9.49555	9.9491
12 h after dark	9.48756	9.42994	9.56073