condition	mean	min	max
4 h after light	7.186294999999999	6.55791	7.81468
8 h after light	6.7567699999999995	6.57563	6.93791
12 h after light	7.5390250000000005	7.13943	7.93862
4 h after dark	8.908885	8.22271	9.59506
8 h after dark	7.58338	7.28095	7.88581
12 h after dark	8.45797	8.37756	8.53838