condition	mean	min	max
4 h after light	7.417893333333334	7.25018	7.61832
8 h after light	7.57756	7.43197	7.827999999999999
12 h after light	7.423	7.37294	7.51432
4 h after dark	7.130956666666666	7.04208	7.21835
8 h after dark	6.970923333333333	6.874560000000001	7.0307699999999995
12 h after dark	7.19299	6.9917	7.32552