condition mean min max 4 h after light 3.2074676666666666 3.034577 3.3623540000000003 8 h after light 4.784502 1.461617 6.785405 12 h after light 11.285720333333332 4.1291709999999995 18.7732 16 h after light 3.092454333333333 2.5476669999999997 3.669396 4 h after dark 2.696396 2.293602 3.029684 8 h after dark 2.0496106666666667 1.5648879999999998 2.914463