condition	mean	min	max
0 h after light	6.89335	6.82537	6.96133
4 h after light	6.41614	4.38095	8.45133
8 h after light	5.7242	5.56835	5.88005
4 h after dark	7.289405	6.40051	8.1783
8 h after dark	7.687855000000001	7.06093	8.31478
12 h after dark	8.411645	8.39217	8.43112