condition	mean	min	max
4 h after light	7.60893	6.55195	8.66591
8 h after light	6.427325	6.06077	6.79388
12 h after light	6.9737100000000005	6.23921	7.70821
4 h after dark	7.087483333333333	6.68969	7.3725
8 h after dark	6.800716666666666	6.53039	6.9947
12 h after dark	7.41603	7.24722	7.59843