condition	mean	min	max
0 h after light	6.77837	5.83196	7.72478
4 h after light	4.77791	4.19443	5.36139
8 h after light	4.000825000000001	3.1013	4.90035
4 h after dark	8.86833	8.72056	9.0161
8 h after dark	8.08522	7.49768	8.67276
12 h after dark	6.238935	5.47834	6.99953