condition	mean	min	max
0 h after light	6.12229	5.62047	6.62411
4 h after light	4.46055	3.7056	5.2155
8 h after light	7.62477	7.23575	8.01379
4 h after dark	7.88889	7.49776	8.28002
8 h after dark	7.2765	7.00073	7.55227
12 h after dark	4.654605	4.52172	4.78749