condition	mean	min	max
4 h after light	1.84326	1.71847	1.96805
8 h after light	2.69474	2.39179	2.99769
12 h after light	2.995475	2.96006	3.03089
4 h after dark	3.63312	3.45347	3.81277
8 h after dark	2.134315	2.12677	2.14186
12 h after dark	2.709385	2.5076	2.91117