condition	mean	min	max
4 h after light	7.07445	6.38601	7.76289
8 h after light	4.938245	4.84763	5.02886
12 h after light	4.557065	3.93953	5.1746
4 h after dark	5.2667	4.69956	5.99435
8 h after dark	6.466083333333334	6.14099	6.86798
12 h after dark	6.386996666666667	5.60489	7.2991