condition	mean	min	max
4 h after light	6.15373	5.76595	6.67813
8 h after light	6.20022	5.59226	7.069660000000001
12 h after light	6.278833333333333	5.75462	6.8824
4 h after dark	6.44983	5.81913	7.08891
8 h after dark	6.279233333333333	5.92352	6.64802
12 h after dark	5.94515	5.63471	6.4867099999999995