condition	mean	min	max
4 h after light	6.389423333333333	6.163069999999999	6.84028
8 h after light	6.45359	6.36227	6.61307
12 h after light	7.165053333333334	6.946910000000001	7.37885
4 h after dark	7.492306666666667	7.348730000000001	7.615660000000001
8 h after dark	7.3823066666666675	7.19268	7.50628
12 h after dark	7.34686	7.147410000000001	7.49538