condition	mean	min	max
4 h after light	3.867255	2.98483	4.74968
8 h after light	4.628145	4.61782	4.63847
12 h after light	6.17035	5.48316	6.85754
4 h after dark	7.44271	6.80656	8.07886
8 h after dark	6.35139	5.90127	6.80151
12 h after dark	5.364815	5.26934	5.46029