condition	mean	min	max
4 h after light	37855.84166666667	34592.685	43187.69333
8 h after light	42713.97111	39577.15	48499.71
12 h after light	40894.98222333333	33684.29667	48009.75667
1.5 h after dark	32766.309999999998	28460.86667	38036.92
5.5 h after dark	26870.949996666666	24686.14333	29133.06333
9.5 h after dark	25810.124443333334	23998.44	28940.02