condition	mean	min	max
0 h after light	14.549	13.9541	15.1439
4 h after light	14.19455	12.0382	16.3509
8 h after light	9.050645	8.51333	9.58796
4 h after dark	14.3655	12.1058	16.6252
8 h after dark	17.72035	15.4609	19.9798
12 h after dark	20.67785	20.2205	21.1352