condition	mean	min	max
4 h after light	26869.825	23205.865	32281.36
8 h after light	29450.37944333333	23310.16333	35081.52
12 h after light	38045.74555666667	30156.41667	46271.69333
1.5 h after dark	64788.27222333333	54316.37667	73608.77333
5.5 h after dark	47265.228886666664	41284.21333	51131.37
9.5 h after dark	40630.76333333333	38722.46	43901.56