condition	mean	min	max
0 h after light	3.238275	3.23539	3.24116
4 h after light	6.521215	6.44918	6.59325
8 h after light	8.547525	8.00231	9.09274
4 h after dark	3.56459	3.52295	3.60623
8 h after dark	3.92752	3.28317	4.57187
12 h after dark	2.498045	2.24768	2.74841