condition	mean	min	max
4 h after light	8.069646666666667	7.979889999999999	8.12134
8 h after light	8.34376	8.25948	8.40313
12 h after light	8.4818	8.429269999999999	8.56475
4 h after dark	8.297513333333333	8.05301	8.47537
8 h after dark	8.319446666666668	8.25378	8.37748
12 h after dark	8.380973333333333	8.335239999999999	8.435880000000001