condition	mean	min	max
4 h after light	19123.748333333333	17722.07333	20565.055
8 h after light	13562.542776666667	11303.17	16307.26333
12 h after light	8071.735554333333	4777.5	12580.82333
1.5 h after dark	7123.246667	5792.496667	8879.186667
5.5 h after dark	11870.047779	9087.266667	15290.47667
9.5 h after dark	14563.35667	14327.35667	14729.45667