condition	mean	min	max
4 h after light	14699.102223333333	12473.85	16171.46667
8 h after light	17938.325553333332	13828.77	21169.16333
12 h after light	18879.701109999998	17035.68667	20776.09333
1.5 h after dark	13569.038886666667	11105.37333	17628.71333
5.5 h after dark	7427.917778	6808.696667	7844.836667
9.5 h after dark	10099.120001	7417.473333	12818.67667