condition	mean	min	max
4 h after light	9.157863333333333	8.86326	9.40329
8 h after light	9.02453	8.51848	9.41548
12 h after light	9.22024	8.92146	9.51259
4 h after dark	9.165446666666666	8.85625	9.52505
8 h after dark	9.174553333333334	8.97507	9.45548
12 h after dark	9.05003	8.69156	9.27873