condition mean min max 4 h after light 0.5824933333333333 0.0 1.74748 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.65691 0.0 1.97073 12 h after dark 0.7366066666666667 0.0 2.20982