condition	mean	min	max
0 h after light	5.30486	5.20557	5.40415
4 h after light	4.285905	3.33012	5.24169
8 h after light	3.54338	3.38529	3.70147
4 h after dark	6.03515	5.40963	6.66067
8 h after dark	5.938985	5.16888	6.70909
12 h after dark	4.105675	4.09956	4.11179