condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0172221 0.0 0.0344442 4 h after dark 0.0 0.0 0.0 8 h after dark 0.01814495 0.0 0.0362899 12 h after dark 0.0 0.0 0.0