condition	mean	min	max
4 h after light	8.741685	8.58371	8.89966
8 h after light	6.476229999999999	6.14535	6.80711
12 h after light	7.40416	6.37152	8.4368
4 h after dark	11.300149999999999	10.8662	11.7341
8 h after dark	12.4143	11.0862	13.7424
12 h after dark	9.781320000000001	9.52464	10.038