condition	mean	min	max
4 h after light	7.52181	7.2906699999999995	7.872330000000001
8 h after light	7.465833333333333	7.202089999999999	7.67661
12 h after light	7.274803333333334	6.98075	7.65705
4 h after dark	7.41736	7.39658	7.44157
8 h after dark	7.279163333333333	6.92731	7.5129399999999995
12 h after dark	7.52973	7.28521	7.93359