condition	mean	min	max
4 h after light	6.56661	6.43964	6.6539600000000005
8 h after light	6.5489766666666664	6.2131099999999995	6.8402899999999995
12 h after light	6.4677	6.2458599999999995	6.7076899999999995
4 h after dark	5.979516666666667	5.9168400000000005	6.0278
8 h after dark	5.652646666666667	5.4169	5.9153400000000005
12 h after dark	5.78301	5.70991	5.88898