condition	mean	min	max
4 h after light	3.8030433333333336	3.78479	3.8224400000000003
8 h after light	3.8056133333333335	3.7997	3.8088599999999997
12 h after light	3.8382499999999995	3.7409199999999996	3.93056
4 h after dark	3.8426066666666667	3.8060099999999997	3.8947300000000005
8 h after dark	3.83825	3.7463599999999997	3.96876
12 h after dark	3.8176400000000004	3.7467300000000003	3.8759900000000003