condition	mean	min	max
4 h after light	8.559619999999999	7.28482	9.83442
8 h after light	6.96032	6.68909	7.23155
12 h after light	6.984075000000001	6.89376	7.07439
4 h after dark	7.619763333333333	7.14637	8.46002
8 h after dark	8.94351	8.63965	9.35311
12 h after dark	8.925963333333334	8.21053	10.0425