condition	mean	min	max
4 h after light	6.123066666666667	6.0662400000000005	6.18688
8 h after light	6.246683333333333	6.14745	6.37374
12 h after light	6.21463	6.15304	6.3280199999999995
4 h after dark	6.20816	6.144480000000001	6.24768
8 h after dark	6.281663333333333	5.98194	6.64732
12 h after dark	6.1060300000000005	5.863180000000001	6.40749