condition	mean	min	max
4 h after light	6.158589999999999	5.97791	6.42474
8 h after light	6.042190000000001	5.78556	6.230630000000001
12 h after light	5.971533333333333	5.69591	6.25486
4 h after dark	6.143356666666667	5.78193	6.52574
8 h after dark	6.1248466666666666	5.7379999999999995	6.63912
12 h after dark	6.12223	5.86751	6.57666