condition	mean	min	max
4 h after light	10.35257	8.98454	11.7206
8 h after light	8.54862	8.48037	8.61687
12 h after light	14.30745	12.144	16.4709
4 h after dark	20.026866666666667	17.9107	22.138
8 h after dark	22.8046	22.4186	23.4178
12 h after dark	19.392633333333333	18.4721	20.5984