condition	mean	min	max
4 h after light	9.00873	8.95757	9.05105
8 h after light	8.780193333333335	8.620610000000001	8.883560000000001
12 h after light	9.07309	8.96193	9.13187
4 h after dark	8.618553333333333	8.51465	8.69542
8 h after dark	8.524426666666667	8.38321	8.717130000000001
12 h after dark	8.46741	8.34786	8.6108