condition	mean	min	max
4 h after light	8.984245000000001	7.57549	10.393
8 h after light	8.21584	7.79071	8.64097
12 h after light	9.334810000000001	9.24602	9.4236
4 h after dark	10.733233333333333	10.4319	10.8873
8 h after dark	11.5849	10.6411	12.9087
12 h after dark	7.88317	7.5594	8.3284