condition	mean	min	max
4 h after light	7.390886666666667	7.20603	7.50603
8 h after light	7.520996666666666	7.14195	7.773689999999999
12 h after light	7.27002	7.03302	7.663939999999999
4 h after dark	7.36944	6.95069	7.71794
8 h after dark	7.261433333333334	6.764460000000001	7.64823
12 h after dark	7.2150099999999995	7.15141	7.335189999999999