condition	mean	min	max
4 h after light	8.620998	8.188564	9.053432
8 h after light	7.4131625	7.362031	7.464294
12 h after light	8.3929905	8.221743	8.564238
4 h after dark	7.630017499999999	7.328643	7.931392
8 h after dark	8.3934315	7.653782	9.133081
12 h after dark	7.486403	7.486403	7.486403