condition	mean	min	max
0 h after light	6.109345	5.6752	6.54349
4 h after light	4.057785	3.65505	4.46052
8 h after light	4.59202	4.49626	4.68778
4 h after dark	7.694075	6.75689	8.63126
8 h after dark	7.492945000000001	7.40855	7.57734
12 h after dark	5.52449	5.40024	5.64874