condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.02534145 0.0216659 0.029017 12 h after light 0.16281099999999998 0.140396 0.185226 4 h after dark 0.034859299999999996 0.0234624 0.0462562 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0