condition	mean	min	max
4 h after light	7.461994	7.362031	7.561957
8 h after light	7.376936000000001	7.362031	7.391841
12 h after light	7.563899	7.327249	7.800549
4 h after dark	7.211656	6.939481	7.483831
8 h after dark	7.0418065	6.56923	7.514383
12 h after dark	7.256777	7.256777	7.256777